Why some people register here then do nothing? They don't do anything else.... They don't bother to edit their profile or something else. I don't like those "empty" accounts. They remind me of spammers.

Maybe I should add some fields that a person should have to fill in right there when s/he registers. and maybe I should add CAPTCHA verification (a combination of some letters and numbers you have to enter when you register, so that we know a person is a real person and not a spam-bot or similar).