My impression is that the goal has never been to divide people into different boxes but rather to provide different environments for a discussion to move in different ways. I have long been opposed to limiting the forums to certain "kinds" of posters or responses, as this is a discussion forum, afterall.
Ultimately, however, the responsibility of creating those environments lies with the members posting there, not increasingly restrictive forum guidelines or heavier moderation, imo.
Is this simply one moderator's opinion, or mdc policy??