I vote wuut.
Also, SamTheLost. Legendary in the way that people will only talk about him in hushed tones, fearing the wrath of the moderation team. Some people say he killed his own computer with a hatchet! I hear he still paces the halls of these forums dragging the chains he once used to pull a car out of a snowbank.
I'll never forget the first time I saw him spam a thread. It was terrifying. I barely got out alive. If it weren't for that chain link fence getting caught on the hem of his jacket, I would have surely been killed.