Hm...I guess it's all OK if the boundaries are known and what-not, and it all stops as soon as one party or another says to. Sure it's not the focus of the site or why we're here, but as has been shown things can sometimes work out and (IMO) that's great and isn't a thing that should be stopped just because. It actually causes the romantic in me (small, but there) to get a big, stupid grin all over his dial. (And according to an article I read over the weekend, people don't even talk to strangers in bars these days, lest they get accused of being a creeper...and indeed, talking to strangers in bars has come to be seen as creepy in and of itself, apparently.)
But for me, personally...flirt and hit on me all you like. I'm 99.9% sure not to notice (I've always been pretty clueless that way), and I'm thousands of miles away from most of you in any case.
(Plus I'm not single. Sorry to disappoint, ladies.
)