I don't know why anyone uses it. I was on it for a little while to keep track of a couple of individuals, but after the contract fell through, I left. I thought it was crap even when I was on it. Also, I didn't put much on it, and none of it was really relevant to anything, so. . .
MySpace was better, but I got rid of that, too. They changed the format, it became rather hard to use, so good-bye to that. Never again. It's not like I want to be bothered by a random bunch of people I don't know, anyway.