Normally, people don't actively search for a group to join. If a recruitment group/forum was created, I can see it only being used by recruiters and not potential recruits. That's what the classifieds were like. People posted recruitment threads there, then left and waited for people to join. Because of this people resorted to using PMs to recruit, which could be quite annoying. This is the Community forum, for the community to come together. If you don't like recruitment threads, mute the #recruitment tag.