For those having problems with Roles/Capabilities where s2Member/bbPress is concerned, you might want to take a look at this thread for some helpful tips. We’ve been working with some folks on this lately, so perhaps this thread will save you some grey hair 🙂
See: http://www.s2member.com/forums/topic/uninstalling-s2member-causes-permission-issue/#post-35231
Thanks to everyone for reporting this compatibility issue between s2Member and bbPress v2.2+.
I’m Jason Caldwell, a developer over here at s2Member.com.
The latest release of s2Member includes a fix for this compatibility issue.
(s2Member/s2Member Pro) Compatiblity.
Updated to support Dynamic Roles introduced in bbPress® v2.2. Discussed in this thread. Also see changelog: http://www.s2member.com/changelog/#s2-changes-v121201
Please let us know through the forums at s2Member.com if you have any further trouble. Thanks again!