I've seen a few people take news of people's deaths as a time to openly critique and lodge criticism against people and their work, but I've not seen instances of quote "I'm glad to see another bigot dead" with the exception of Rush Limbaugh. In that case, though, one of the things that he was well known for was seeming to celebrate the deaths of gay people on his show, a far cry from comic writers.

Given enough people in the world, I have little doubt there is at least one tumblr/twitter/Facebook account that literally says this, but the ones I see don't have the "I'm glad they're dead" part.

Name other types of punchable people.