"logged-in only" editing
Fragment of a discussion from Talk:Task force/Wikipedia Quality
Truthfully, the "privacy" advantage of an IP is overrated. Do you really want people to be able to see that you're operating using AT&T/BellSouth, from Richardson, TX?
But I agree with the "no pain" assessment. If you've always been an IP and never been a user, it's hard to get sucked into the drama.