Chess sadly attracts weirdos, at least social misfits. The problem with these sort of people is that real friends will tell you when your behavior is detremental. Deducively, he had no friends because no one wants to be associated with such an individual, hence it perpetuates.Quote from Hansel H:
I used to play speed chess 30 years ago at the Toronto Chess Club. Once in a blue moon I would beat a player with a 2000+ rating but could never pass 1860 myself. There was a player there with a 1300 rating who would slaughter me every time.
Early in the game he would dig into his nose and pull out a bit of snot then hold it above the board and roll it between his thumb and forefinger while he pondered his next godawful move. This was a bit of chess strategy that worked perfectly with me but apparently not everybody or he would have had a higher rating.
Even so it must have worked with at least a couple of other players. He was a terrible player and I suspect that without his snotball technique his rating would have been <1000.
There are many ways to become an expert, a bit harder to become a master. Playing as many tournaments as possible, closely analyzing the losses is a great way. The key is purposeful training/practice and avoiding TMI (Too much information).
I rate myself as a teacher by how many rating points my students are able to improve in a year. 300 is my goal. To give perspective, Carlsen at the age of nine went from a 900 rating to 1900 rating in a year, which is out of this world. A good coach has produced at least two 1350 players from scratch (not picked up someone elses hard work). A super trainer has produced several masters while not ruining the zest and enjoyment of the game.
