He blocked me just before he deleted his account.
Does Chess Attract Angry, Mentally Unbalanced People?

Seems kind of silly to go around blocking people right before you close your account. Wasted effort unless he thought you would deface his threads once he was gone. But he'd already done a pretty good job of defacing them himself.

Hey, the site has over five million members! Even if only one in a hundred is a psycho, that gives you a mindboggling number of 50 thousand potential nutcases.
Dang dude, nice math there! I guess that explains running into the occasional weirdos who play quite well, but when they make a blunder they call you names. To anyone in general, the best thing to do when you run into people like that is to just remember that a poor sport, no matter how mean, can't define who you are unless you let them. And besides- they usually don't know that everybody is special in their own way, so why diss them? Your post is great man! I just thought I'd add my own thought to it, if that's ok.

We all hate losing. And sometimes it feels like we let games get away from us that we shouldn't have. Heck, sometimes simple bad luck leads to a victory for the opponent.
That said, what is up with all the nasty notes people post on others' "About Me" profiles? A quick tour of many players' profiles in the, say, 1200-1600 rating range will reveal some of the nastiest, meanest, quite frankly mentally unbalanced comments you're likely to find anywhere on the web... save maybe controversial videos on YouTube.
As someone who works hard to not take his chess too seriously yet works hard to learn from others and improve, I'd love to hear your opinions on this. Is the dual, head-to-head competitive nature of chess a catalyst to hostile, mentally unstable behavior?
I tend to look at this website as a community of people you're trying to learn from and get along with. Maybe this is naive of me.
The funny thing is that most of the time people who claim that other people are mentally unstable are mentally unstable themselves.
just saw one happen today and RobinCrowley is a living proof of this.