The retarded cousin of your favorite deities.
Retarded celebrities have been around as long as people have been giving each other attention. Which ones died before they could get the attention they truly deserved?
Virtually any of the Nazi Party/SS high rankers is a given though to be honest. Himmler was pretty much exactly the kind of person who would browse /x/ and follow Varg obsessively if he was around today. Hitler is history's biggest lolcow and the cause of more than any other person.Hermann Goering. Seems like a lolcow even during his own time. Defintiely a deathfat.
I just looked at his thread. He reminds me of a slightly less autistic Chris Chan.Celebrities rarely get their own threads unless it's in multimedia.
Too many of them are playing up the eccentricity as part of their brand.
That being said, you're probably looking for someone who washed up before they really made it and didn't handle it well.
The closest to a celebrity with a thread that pops into mind is Greg D'Agostino (though so far as I'm aware he's still alive).