PeteHoliday

kimedia

This is a simple plugin to allow for restricting access to content.
Users may be members of multiple groups. Multiple groups and multiple individual users may be allowed to view each 
post. Overlaps are ignored — if the user is a member of any group that is allowed to view the post, that user will 
be able to view it.

Custom Post Type Privacy

Stable Tag 0.3 Custom Post Type Privacy allows WordPress authors to grant access to users and groups of users across all posts, pages and custom post …

Hitesh Chandwani

bbPress Google reCAPTCHA v2 is a free plugin/add-on for bbPress, that allow you to easily add Google reCAPTCHA v2 on your bbPress forum.
bbPress Google reCAPTCHA v2 prevent spam from creating new topics or replies. This plugin is built to integrate seamlessly with your bbPress enabled WordPress website.
bbPress Google reCAPTCHA v2 is very easy to use and work for Anonymous posting as well as Logged-in users.

reCAPTCHA for bbPress

I was getting way too much spam on bbPress forms until I added this plugin. Thank you, good sir!

Does exactly what I need

Google reCAPTCHA v2 for bbPress is a free plugin/add-on for bbPress, that allow you to easily add Google reCAPTCHA v2 on your bbPress forum.

Custom Post Type Privacy vs reCAPTCHA for bbPress