I don't like myspace, mainly because it creeps me out. I joined because Nils did and I was curious what the deal with it was, but I'm kind of regretting that I did. It's not so much that I get contacted by people I don't want to hear from as it is that I get random messages and friend requests from people I don't know who are like "hey, we should hang out or talk on IM sometime" and all I can think is "I hardly hang out or talk on IM with people I actually know, let alone strangers from the internet who decided I'd be cool to talk to based on a picture a few lines of description." Plus too many people on there seem hopelessly trendy and lame, which bothers me. I probably just don't have the right mindset to enjoy something like that. My enjoyment of internet communities comes more from things like this board, where it's a relatively small number of people whose identities I can fairly easily understand and keep track of.
If I were you, avi, I'd go for registering as itsatrap for the promotion values, rather than as an individual, because that's when it gets a little annoying in my book.