Personal information is a red herring in that statement. If it's information that can be used by board rules, then it can be used for trolling where trolling's allowed. If it's not fair game then it can't be used for any purpose. The problem here, if there is one, is using avatars to troll outside the Red Room. And there we have plenty of precedent: trolling signatures have been commonplace over the years, and they have the same forum issues that avatars do. I'm pretty certain I complained about it to no avail in the past.