Personally, I'd want things to stay as they are; I'm not sure how much people actually even pay attention to it, and I've never felt like the logging ever got in the way of people giving constructive criticism. And at the end of the day, I'm not worried about it unless it actually becomes a concern of the players.
But... on the other hand, I've been trying to think of alternatives. Maybe have it so people can link to IP off/anon enabled posts in their own journals/elsewhere when they comment to the meme? Or try one round of IP off, see how it works, and then we can decide if it works all right/doesn't make a difference/doesn't turn into a wankstorm?