So what would happen if I make an app to rate girls from facebook, and they can't log in to check if they've been voted or commented on etc... Does that make me a creep and a perv, because that's exactly what it sounds like to me.
The latter kind of reminds me of a sitcom-idea as pg calls it (http://paulgraham.com/startupideas.html). Looks good on paper but of no actual use. I really have no idea what problem can be solved by targeting women for a social network exclusively which isn't already solved by facebook (groups), whatsapp (group conversations with photos) or path (small exclusive social networks).
edit: okay sorry. After visiting the lulu website, it does exactly what you describe. Taps into the same socially accepted double standard popular websites like tubecrush already use.