We don't all have to like each other, but we should respect others' opinions and try to get along. If we cannot, use the ignore button.
That's where Jollygood wouldn't mind to use a negative feedback and later change the feedback when victim post in the reputation board. But I see no problem to leave a neutral feedback when it comes to detect a shitposter. That's not the first time here in bitcointalk. I have seen a lot of neutral tags from actmyname to the shitposters.
Part of the Spammer Blacklist: this user has made at least 233 replies that are not up to forum standards.