I've never used any dating websites, but people who care about that sort of thing should note that the advice they'll get this way may have a very low, or even negative correlation with what actually works. I don't mean to say that people will consciously write misleading things -- just that, for various reasons, they may not work with a realistic idea of the thought process of those who are supposed to be attracted by the profile in question. To get useful advice, the best way to go is to ask someone of the same sex (and preferences) who has successfully used some such site to share their insight.