Blog comments remain a measurable part of blogging and online community building. The available figures range from platform limits and moderation settings to large-scale comment activity, spam prevention, and reader behavior. Because these sources measure different things, the statistics below keep their original scope, dates where supplied, geography where stated, and whether a figure is a platform claim or a research result.
In this article
- Comment systems and moderation
- WordPress comment settings
- WordPress activity and comment measurement
- Blogger comment options
- Disqus scale and engagement
- Spam protection and audience behavior
Comment systems and moderation
Blog comment statistics are easier to interpret when basic workflow categories are clear. WordPress organizes comments into four statuses: Pending, Approved, Spam, and Trash. WordPress core also exposes four site-wide comment-count statuses: approved, moderated, spam, and trash. These labels describe operational states rather than audience sentiment, so a high pending or spam count should not be read as a measure of community quality without additional context.
WordPress comments placed in Trash are automatically deleted after 30 days, according to the WordPress comments documentation. The same documentation recommends holding comments for moderation when they contain two or more links. That threshold is a practical anti-spam setting, but it can also affect legitimate comments that include multiple references.
WordPress.com suggests a maximum of three levels deep for threaded comments. Thread depth is a structure setting: it indicates how many nested reply levels a conversation can use, not how many total replies a post can receive. WordPress.com also allows comments to be enabled or disabled by default on new posts, and old-post comments can be closed after a chosen number of days.
The platform provides several identity and participation controls. Administrators can require commenters to be registered and logged in, or require comment authors to provide a name and email address. Commenters can use Markdown, and WordPress.com can allow WordPress.com or Facebook logins. When permitted, commenters can insert images, videos, and other blocks in comments.
These settings show why a single “average blog comment” statistic can be misleading. A site that requires accounts, closes comments on older posts, or sends many comments into moderation is measuring a different participation environment from a site that accepts anonymous comments indefinitely.
WordPress comment settings
WordPress.com discussion settings include four avatar-rating labels: G, PG, R, and X. Administrators can show or hide avatars and choose a default avatar for users without Gravatar. They can also cap the comment author avatar rating at G, PG, R, or X.
Comment notifications can be enabled for two events: when anyone posts a comment and when a comment is held for moderation. WordPress.com comment notification emails include the page or post title, author name, IP address, email address, website URL, comment contents, and page URL, along with action links. The documentation therefore describes seven kinds of content or identifying fields before the action links, even though the supplied source labels this item as five data items.
Email replies have a specific formatting rule: WordPress.com says replies must include the quoted notification message or !END on its own line. This is a technical detail, but it matters for the reliability of email-based comment conversations. A notification workflow can fail or behave differently when the required reply marker is missing.
The following compact comparison summarizes the main numeric settings described by WordPress.com documentation.
| WordPress.com feature | Reported figure or choice |
|---|---|
| Threaded comment depth suggested | 3 levels deep |
| Avatar rating labels | 4: G, PG, R, X |
| Comment notification events | 2 |
| Trash retention before automatic deletion | 30 days |
| Moderation trigger recommended for links | 2 or more links |
These are configuration facts rather than performance benchmarks. They can help explain why two blogs with similar traffic may produce different visible comment counts: one may expose more anonymous participation, while another may filter, delay, close, or delete more of the conversation.
WordPress activity and comment measurement
WordPress.com reports two different Activity limits. Free plans show only the past 20 events in Activity, while WordPress.com Activity shows the most recent 1,000 events. The difference is important when interpreting an activity log: the visible window depends on the plan and the specific product context.
WordPress.com also describes two approaches to comment statistics based on the total number of comments. For blogs with fewer than 1,000 total comments, comment stats use the full blog history. For blogs with more than 1,000 total comments, comment stats use the most recent three months of activity. These are different measurement windows, so a smaller blog’s number and a larger blog’s number should not be compared as if they represented the same period.
WordPress.com used a blog with 500 total comments as an example of lifetime-based comment statistics. It used a blog with 87K comments as an example of rolling three-month comment statistics. The examples illustrate the scale change, but they do not establish a universal threshold for every comment metric or a forecast of future activity.
At the API level, WordPress’s wp_count_comments documentation says comment count APIs work either for the whole site or for a single post. The post_id default is 0 for the site-wide total. This distinction makes it possible to separate a blog-wide comment count from the comments attached to one article.
Blogger comment options
Blogger provides three comment locations: Embedded, Full page, and Popup window. Embedded comments allow replies directly on the post. Full-page and popup comments send users to a new page to comment. Location therefore changes the interaction path even when the underlying blog content is the same.
Blogger has three comment-permission choices: Anyone including anonymous users, Users with Google Accounts, or Only members of this blog. It also offers three moderation choices: Always, Sometimes, or Never. When moderation is set to Sometimes, Blogger can review comments older than a chosen age.
The platform can send comment-notification email to up to 10 addresses and post-notification email to up to 10 addresses. A blog can have up to 100 total members, including authors, administrators, and readers. These figures concern access and notification configuration; they are not limits on the number of readers or comments a blog can receive.
Blogger says there is no limit to how many comments can be left on a post. Authors and administrators need a Google Account to manage and post to blogs. Reader comment CAPTCHA asks commenters to complete a word-verification step, adding another control to the participation process.
| Blogger feature | Reported figure |
|---|---|
| Comment locations | 3 |
| Comment-permission choices | 3 |
| Moderation choices | 3 |
| Notification recipients per email type | Up to 10 |
| Total members per blog | Up to 100 |
| Stated comments per post | No limit |
The table combines counts of options with capacity statements. “Three moderation choices” is not equivalent to three moderation events, and “no limit” is Blogger’s stated product description rather than a measured average number of comments.
Disqus scale and engagement
Disqus reports 50 million monthly comments, 17 billion monthly pageviews, and 225 million commenter profiles on its publishers page. It says 78% of the top 1,000 most-commented-on sites use Disqus. These figures describe the Disqus network or its publisher ecosystem, not the typical performance of an individual blog.
Disqus says adding comments can increase time spent per visit by 35% and pageviews per visit by 15%. It also says more than 50% of viewers read comments. Those are platform-reported claims, so they should be presented as Disqus statements rather than universal effects that every blog should expect.
In a separate Disqus Numbers post, the company said its network reached nearly 500 million unique visitors per month, 750,000 websites were using its platform, and about 35 million users participated on its communities. The measurement periods for these legacy figures are not specified here, so the figures should not be treated as current independent estimates.
Disqus says readers have reacted to publisher content literally trillions of times since its Reactions feature launched in 2018. This is a cumulative platform claim. It measures reactions over the life of the feature, not monthly comments, unique people, or the number of written replies.
Disqus research found that mobile accounted for more than 73% of pageviews across publisher sites. That result supports a mobile-first approach to comment layouts, but the supplied source does not specify the study’s geographic coverage or measurement dates. The percentage should therefore be retained as a reported research finding rather than generalized to every blog audience.
Spam protection and audience behavior
Akismet says it has blocked 570,550,738,856 pieces of spam and protects more than 100 million websites. It claims 99.99% spam-detection accuracy. These are Akismet’s own platform claims, not an independently verified audit in the supplied material. The scale still shows why spam handling is central to blog comment operations: a visible comment count can be affected by the volume of blocked activity before readers ever see it.
Disqus polling on ad-supported content collected 4,719 votes. In that poll, 80.4% said they preferred content to be free and ad-supported, while nearly one in five respondents said they would pay if it meant never seeing ads. The figures describe the respondents to that poll, not all blog readers, and the two response groups should not be converted into unsupported revenue forecasts.
Disqus commenter research found that 71% frequently read news and politics, while 64% frequented websites related to their interests or hobbies. The same research found that 76% were interested in post-article satisfaction surveys. These percentages describe reported interests and preferences among the research audience, not a demographic profile for every online community.
Another Disqus finding said 87% discovered content via a direct visit to a major news website rather than social media, RSS, or Google search. The wording identifies a major-news-site audience and a direct-visit comparison, so it should not be read as a general acquisition benchmark for smaller blogs.
Taken together, these statistics point to several separate measurement questions. Platform scale asks how many comments, pageviews, profiles, websites, or visitors a service reports. Moderation asks how comments are classified, delayed, filtered, or removed. Engagement asks whether readers read, react, reply, or spend more time. Audience research asks who participates and how they find content. Keeping those categories separate makes blog comment statistics more useful for evaluating a Blogging & Online Community site.