Allow anonymous posting based on group membership

Currently, the only way to restrict which users can post anonymously is by trust level. Would it be possible to add group membership as a criterion? So, for example, I could create a group “Alcoholics Anonymous” and anyone who is a member in this group can post anonymously, but not the other users.

At the moment this feature does not exist. Its possible to make such a change, @codinghorror’s call of if he wants it in core or not. Regardless I don’t think we will build it, would have to come from community.