To be fair though, this was a decade ago, and he also published an apology; personally when I see people treating others badly, in a way I've treated others bad

To be fair though, this was a decade ago, and he also published an apology; personally when I see people treating others badly, in a way I've treated others badly, it bothers me more than it otherwise would've, so it's entirely possible experiences like this are why a.) bothers him.