Isn't this specifically a 'hook-up' service portion of Loopt? Assume for example this scenario:

You're on dating site, which is mostly heterosexual. There's a lesbian woman on there, you don't immediately notice that her profile says "interested in: women" and message her and she then posts your picture and the message you sent (which may have been a cheesy pick-up line) for everyone to read. Would you like that?