First of all, there's no way you can do that. The jj2 community can associate with whatever they please, and that channel is a major meeting place. While a lot of members don't play often anymore, others do, and nearly everyone has come from the game community. Second, as has been stated, restricting it to jj2 discussion only would more likely force many people to abandon the channel out of boredom. There's not exactly much to talk about. Link also stated a good point that even on the JCF the Misc section is way more active than the JJ2-related forums. Just as many JCF members avoid the Misc section because they dislike it, so can they avoid #jj2 for other channels. And last, cutting ties with the game would solve nothing because nothing would change except giving dissidents a vacuous sense of satisfaction.

#jj2 is a much different environment than the JCF and for good reasons. There is an involved culture to get used to that some people simply won't find appealing. These people can just as easily avoid the channel altogether without whining about it. No one denies that some users can get singled out. It's not fair, but it's the way it is. Most people don't have problems getting along in the channel after a little while. If subjects of discussion bother you, don't participate in them. The majority don't seem to mind. People adapt to the channel, not the opposite.

I'm rambling, I feel, but I get sick of people complaining about #jj2 on these forums. They are not together. #jj2 has its own forum if you have complaints, and despite what you think, the ops are usually very reasonable and work towards just solutions.