I might agree with you about this in most cases, but that does not really ameliorate the problem of unfairness I referenced. If those comments were not banned and you showed up tomorrow, for example, eridu might not have made the list.

Perhaps notably, if I were aware that Eridu's downvotes would result in banning of his comments, then I might have correctively upvoted his comments so that they would not be banned, since I do believe there were some valuable pieces in that discussion. Though I don't know if we want to encourage my sort of behavior.