They're smaller communities, but I've been on a few developer lists that are fairly strict about the dev list being only for developers. That doesn't solve the

They're smaller communities, but I've been on a few developer lists that are fairly strict about the dev list being only for developers. That doesn't solve the "dev who's a jerk" problem, but it does raise the barrier to entry by excluding people who want to only argue and not develop: if you subscribe and immediately start arguing, without having contributed anything, you get booted.