brianmcculloh

A very unobtrusive and light-weight reading progress bar indicator showing the user how far scrolled through the current post or page they are. You can control placement and color of the progress bar, and you can choose whether it includes just the main content or also the comments.
The progress bar only displays once the user begins scrolling the page so it is as unobtrusive as possible. Once the user stops scrolling or scrolls down past the content the progress bar subtly mutes until it is needed again.
There is also a reading time commitment feature that you can separately enable. Control the placement (above or below title, or above content), style, and whether it displays on posts and/or pages. Uses 200wpm as the metric for average reading time.
You can also place the time commitment label anywhere you want via the [wtr-time] shortcode.

Worth The Read

Looks very promising, but on my site, nothing was added.

Absolutely does not anything :(

An adjustable progress meter showing how much of the post/page the user has scrolled through, and a read time commitment label near the post titles.

Anass Rahou

Comment Limiter helps site owners control the length of comments submitted on their WordPress site.
With this plugin, you can define minimum and maximum character limits for comments, helping reduce low-effort comments, spam-like submissions, and overly long responses.
This is useful for blogs, communities, review sections, and any site where comment quality matters.Comment Limiter allows you to setup a limit of maximum and minimum characters allowed in each comment on your website posts, with the following features:
<ul>
<li>An extremely easy-to-use plugin.</li>
<li>Setup a maximum and minimum number of characters.</li>
<li>Enable or disable administrators to write a free comment, without restriction.</li>
<li>Extremely easy to delete. Don’t like the plugin? You can remove it, without leaving any trace.</li>
</ul>
Pull requests are welcome on <a href="https://github.com/ranss/comment-limiter" rel="nofollow ugc">Github</a>.
<h3></h3>
Tags: comment, length, limit, maximum, comment length, minimum comment, comment characters 
Requires at least: 6.0 
Tested up to: 6.6.2 
Requires PHP: 7.4 
Stable tag: 2.3.0 
License: GPLv2 or later 
License URI: http://www.gnu.org/licenses/gpl-2.0.html
<h3>Support</h3>
For questions, feature requests, and support concerning the Comment Limiter plugin, please refer to <a href="https://github.com/ranss/comment-limiter" rel="nofollow ugc">Github</a>.

Comment Limiter

Limit comment length by setting minimum and maximum character rules for WordPress comments.

Worth The Read vs Comment Limiter