In that discussion you seemed to agree that there's not much we can or should do about it; you seemed to be indicating that you were just contemplating the phenomenon, rather than complaining or arguing that something needed to be done.

For what it's worth: the “celebrity” effect works both ways. Sure, some members of the community may be more willing to give them a pass. But other users will be more motivated to downvote and/or flag, even if the comment is relatively benign.