Problem is we don't actively want to be separated, it just happens when threads die or get deleted. Sometimes people make a new thread at the same time and we keep the old one around for when the thread we're using hits the limit. Same with every other kind of thread.
Unfortunately, not everyone is smart so we can't force people to come to the same thread all at once. It seems like we all migrated to this one though, the other thread is pretty dead. You can't possibly get mad at us for making a good effort to be organized, sometimes there will be more than one thread up but that always happens with active threads.