Allowing members into groups
Using Jamroom
paul:
Invite is a module that we started developing some time ago but was never completed or released as it would have been an open invitation to users to spam each other. Users can message their followers. Allowing users to message all other users will be abused.
I still think this should be released, make it a premium module then admins have to make the decision. Just don't do something because it might open up spam opportunities, every community reacts differently.