I've never really watched his show so have never seen anything of his beyond those occasionally insane clips people post when he goes on a massive rant, but I know plenty of people who watch his stuff ironically and find him entertaining in the way you would an insane comic book villain or something. Because the guy, undoubtedly, is as entertaining as he is insane. But the problem is that his insanity isn't just something arbitrary for his own amusement; as we've seen with Sandy Hook it has a very direct impact on those it targets. Which is something I imagine a lot of people forget.
I find him entertaining but haven't forgotten about the sandy hook thing. It was a pretty massive feck up and really distasteful but it was kind of a once off (he says horrible stuff about politicians et al quite often but I dislike them enough not to care i guess). I don't really get why hes so notably unpopular at the moment.