Jeff Starr

Override WordPress “automatically close comments” option and leave comments open on any individual posts.
Want to keep comments open on a few old posts? This plugin is for you. Here’s how it works:
In the WordPress Discussion Settings, there is an option called “Automatically close comments on posts older than” whatever specified number of days. When this setting is enabled, comments will be disabled on any posts that are past the deadline, whatever “x” number of days.
What WordPress is missing is a simple way to override that global option on a per-post basis. That’s exactly what this plugin does. For any post that is past the comment deadline, this plugin will display a small meta box on the “Edit Post” screen for each post. There you can check the box to enable comments on the post. Comments will then remain open for that post indefinitely, until the box is unchecked or the plugin is uninstalled.
Note: The override meta box will not be displayed if the post is not past the comment deadline (whatever “x” number of days).
Check out the screenshot below to get a better idea.
Features
<ul>
<li>Clean, secure code</li>
<li>Written according to the WP API</li>
<li>Simple, lightweight, and flexible</li>
<li>Localized and translation ready</li>
<li>Cleans up after itself when uninstalled</li>
</ul>
For more details about how it works, visit the <a href="https://wordpress.org/plugins/override-comment-options/#installation" rel="ugc">Installation docs</a>.
Privacy
This plugin does not collect or store any user data. It does not set any cookies, and it does not connect to any third-party locations. Thus, this plugin does not affect user privacy in any way.
Override Comment Options is developed and maintained by <a href="https://x.com/perishable" rel="nofollow ugc">Jeff Starr</a>, 15-year <a href="https://plugin-planet.com/" rel="nofollow ugc">WordPress developer</a> and <a href="https://books.perishablepress.com/" rel="nofollow ugc">book author</a>.

Override Comment Options

Enables per-post override of "Automatically close comments on posts older than" option in the WP Discussion Settings.

pluginkollektiv

Few users are familiar with the comment block list built into WordPress. Located in the WordPress admin area under “Settings”—“Discussion”, that block list for incoming comments accepts values (words) to identify spam by.
Additionally to plugins like <a href="https://wordpress.org/plugins/antispam-bee/" rel="ugc">Antispam Bee</a> in order to fight spam successfully a curated comment block list is recommendable. You can either update the list manually, or utilize a very detailed global <a href="https://github.com/splorp/wordpress-comment-blacklist" rel="nofollow ugc">comment block list</a> that gets updated on a regular basis.
Block List Updater has been developed to keep your comment block list in your WordPress installation up to speed with the curated global list on GitHub.
The plugin will check the global comment block list on GitHub multiple times a day. Whenever new anti-spam values have been added to the global list, Block List Updater will read the global list and update your WordPress database accordingly. While the check-up process will run several times a day, the plugin will only update the database when it detects an actual change of the global comment block list on GitHub.
<h3>Support</h3>
<ul>
<li>Community support via the <a href="https://wordpress.org/support/plugin/blacklist-updater" rel="ugc">support forums on wordpress.org</a></li>
<li>We don’t handle support via e-mail, Twitter, GitHub issues etc.</li>
</ul>
<h3>Contribute</h3>
<ul>
<li>Active development of this plugin is handled <a href="https://github.com/pluginkollektiv/blacklist-updater" rel="nofollow ugc">on GitHub</a>.</li>
<li>Pull requests for documented bugs are highly appreciated.</li>
<li>If you think you’ve found a bug (e.g. you’re experiencing unexpected behavior), please post at the <a href="https://wordpress.org/support/plugin/blacklist-updater" rel="ugc">support forums</a> first.</li>
<li>If you want to help us translate this plugin you can do so <a href="https://translate.wordpress.org/projects/wp-plugins/blacklist-updater" rel="nofollow ugc">on WordPress Translate</a>.</li>
</ul>
<h3>Credits</h3>
<ul>
<li>Author: <a href="https://sergejmueller.github.io/" rel="nofollow ugc">Sergej Müller</a></li>
<li>Maintainers: <a href="https://pluginkollektiv.org/" rel="nofollow ugc">pluginkollektiv</a></li>
</ul>

Block List Updater

Automatic updating of the comment block list in WordPress with antispam keys from GitHub.

Override Comment Options vs Block List Updater