I liked Aphtonites example from earlier. It describes the forum's situation entirely, from the perspective of those who hate the group.
Think of it this way, if you walked into your favorite bar, and then you see a group of people there are naked there trying to show off their richards, and they're intending to come there again for the next few years, you're disgusted and you complain, but they say "No! if you don't like us doing this, don't come here again!"
And the manager of the bar says nothing on it, so he can't help.
If you don't like his bar brown townogy, you can fix it to the simplest form and work with it all the same.
Simply, your favorite hangout is invaded by a group you find troublesome that have no intention of leaving and the one in charge will not remove either party.
In such a situation, you really only have few options. You either (A) find a new hangout, one that does not allow such groups and has someone in charge who will remove them on the spot, or (B) remain at your favorite hangout, and being forced to have to deal with said group you find troublesome on you own, either trying to remove them yourself (which I'll add that it won't happen) or leaving it alone painfully ignoring it.
The problem with option (B) is you have no way of removing them yourself. This is not a real hangout, it's an internet forum, you have no way of forcing them out. No bar fights, no large groups of muscular badasses, nothing.
The problem with option (A) is that you probably do not want to leave your favorite hangout. You were there first, why should you have to be the one to leave? I can't answer the unfairness you would feel. The plus side is when you find that new hangout that will not tolerate their kind, you are likely to be quite happy. You could also try to persuade your friends to join you there.
This particular group won't leave by your command, ever. Any bitching about it will obviously get nothing done. Your only chance of this group ever leaving is if they get bored of the location, bored of their cause, or are removed though the rules.
Have at it.
