nodebb-plugin-blacklist-country(latest: 1.1.4) This plugin allows administrators to ban entire countries from registering and logging in. Please be aware that this is a heavy-handed approach and should not be used lightly (or temporarily)!
nodebb-plugin-knowledge-base(latest: 1.1.1) This plugin exposes a new category-level privilege called "Knowledge Base". When enabled for a specific category, all top level posts in that category will become editable by other users.
nodebb-plugin-tarsnap(latest: 1.2.9) This is a Tarsnap plugin for NodeBB. Keep in mind it is merely an interface, and **you still have to figure out how to install Tarsnap on your server** before this plugin is of any use.
nodebb-plugin-topic-redirect(latest: 1.0.2) This plugin allows you to specify some topics as redirects to external assets. It is useful if migrating some topics away from NodeBB (and preserving the old link for SEO purposes).