For me it’s more join date. When I see a member whose handle I don’t recognize going around telling large swaths of a forum just what a bunch of mouth breathers they all are, my eyes cannot help but to gravitate towards their profile summary, and in particular the join date. In the case that it’s recent, post count then becomes inversely proportional to my level of respect or interest in their megaphone. Likely some other shiny object will soon enough grab their attention and an entirely different online community somewhere will be held at their wrath for a time.