Here’s FreakFeely’s meltdown post.
That was right before I joined. There’s been a serious drop in the quality of whackjobs around here since then.
Hands down, JDT. His was a special kind of crazy. Even years afterwards, you’d only have to mention the initials and everyone knew who you were talking about.
This is my favorite meltdown.
What about the poster who said she had a ghost friend who liked to watch Pixar films?
I also seem to recall a thread in which everyone was arguing how many domestic cats a single person could fend off in a fight to the death. The strategies involved were great, especially the one about taking two dead cats and tying the tails together to make nunchucks to beat the remaining cats to death with. Classic.
Bjorn, or however he spelled his name. That was some 190 proof crazy there.
The guy who admitted to blowing a dog.
Anyone remember the guy who shoved his wedding ring up his nose? That thread was so random and made me join in 2003. Sadly, I can’t find it anymore. It was hilarious, because after the one guy shoved his wedding ring up his nose, most of the other posters responding began trying, too, and a couple got their wedding rings stuck. I was glad I had an office with a door at the time because I was laughing so hard I was crying by the end.
Some posters seem to have a peterntatural fascination with semen. F’r instance Why is my semen black and orange? Incidentally, searching for semen + orange produces waaaay too many results :o 
Holy shit.
Yeah, I was just sad that I’m not married, because I wanted to stick my wedding ring up my nose, too.
Clearly, the answer to “If everybody else jumped off a bridge, would you jump off a bridge too?” is “Yes. Yes, absolutely yes.”
Oh God, stop! can’t breathe, stomach hurts, ROTFL 
Yup - I was engaged at the time and was eyeballing my engagement ring. I couldn’t make myself do it, though I did measure. I think the diamond would have hurt too much.
The diamond could function as the “handle”, see. I’ve thought about this.
This one is pretty strange based on the fact that the OP presented with a straight face.
ETA:
What about the guy who admitted rimming a dog.
I don’t really know why, but that just made me howl with laughter. If anyone can dig up a link to this, I would be eternally grateful.
For a dude going through a meltdown, he had his use of commas down pretty solid, give or take a instance where a semicolon should have been used.
That always impressed me.
Wasn’t there a thread or three last winter in which the OP was seriously considering having an affair? I seem to remember a moderate amount of crazy in that one.
Some of thes links had me gigglin’ like a loon. Hilarious!
There was a pretty strange thread once where someone was seriously wondering why eating pepperoni pizza made your testicles hurt. Bwhaaaaa. Then he realized from everone’s replies that it was only happening to him so it ended with a “nevermind”. Double bwhaaaaaa.