Reply To: Restricting Topics with S2Member plugin
There are all sorts of backdoors that a ‘page/post’ restricting plugin doesn’t cover for bbpress
For instance :
search is usually forum wide
http://www.mysite.com/topics
http://www.mysite.com/replies
looking at topics/replies created in a user profile
recent topics widget
recent replies widget
all usually just bypass a plugin written for pages.
which is why I wrote the private groups plugin
https://wordpress.org/plugins/bbp-private-groups/
There is no reason why it shouldn’t work alongside your members with members protecting your pages & posts, and private groups protecting your forums.
BUT you do have to set users up to see restricted forums, and this is manual. It is quick to do (just a setting within the user settings), but if you have an automated joining process, then you would need to add a manual step (or write some code!)