Subscribe to Comments allows commenters on an entry to subscribe to e-mail notifications for subsequent comments.
Spam protection, antispam, all-in-one, premium plugin. No spam comments & users, no spam contact form & WooCommerce anti-spam.
Disqus is the web's most popular comment system. Use Disqus to increase engagement, retain readers, and grow your audience.
WP-Optimize is WordPress's most-installed optimization plugin. With it, you can clean up your database easily and safely, without manual queries.
Allows administrators to globally disable comments on their site. Comments can be disabled according to post type. Multisite friendly.