The AIDS "epidemic" is a symptom of a weak and diseased society. So is the music that Chuck made later in his career. Calling his music "gay midget fecal porn (GMFP)" would be a similar insult for example.
Still though, Chuck being a traitor doesn't explain the level of contempt directed at him from this site. That's more because of the violent iconoclasm that's characteristic of anus.com. Chuck was being placed on a pedestal around the time of his death that was entirely undeserved given his artistic contributions and his current (at that time) value to the metal and human community. Personally, I fully support what might be called "overreactions" from this site over issues like Chuck's death, as a balance to the rest of society.
To be honest though, that letter that Prozak supposedly wrote to Chuck's mom is the ONLY thing that's ever come out of this site that doesn't have my full support. A mother has the right to grieve, uniterrupted, for her son, even if he was a worthless asshole. This is not moralistic secularized Christianity, this is basic human decency which can be arrived at through introspection and logic, not dogma and moral conformity.