In the early days (before I was around in fact) a friend of Nym90's named Christopher Michael used to post here. Nym later told us that he had passed away.
We also used to have two brothers who went by Dubya and CheeseWhiz, who would both post regularly in around 2005-06. Dubya came back a few years ago and let us know that CW had also passed.
And let's say nothing of Yates...
^^^ The correct answer. What's worse about Yates is that he pulled his stunt before CheeseWhiz, well, actually passed away, so there was completely unwarranted skepticism about CheeseWhiz at first