To put it simply, I have both Safe and Questionable ratings in my blacklist to optimize gooning potential. But seeing the big white square saying Blacklisted in place of most avatars definitely detracts from the personality of people on the forums. I know it's literally one button press on the Posts page to toggle the blacklists, but I think the ability to separate it from either Avatars as a whole, or the Forum tag specifically, would be a positive optimization to the community aspect. I imagine I'm not a rare case of users who blacklist the non-Adult ratings.