If someone has already correctly guessed it and the point of this is a point-based game, then people need and deserve to be notified that the correct guess was made.
Even if this isn't that kind of a game, while not telling could be amusing to some, it'll likely annoy the hell out of others.
So, then if nunu just goes ahead and tells the person who got it that they got it right, but left the answer up in the air for everyone else, that'd be fine?
I never thought this game had an objective, other than to have fun, which I believe was more than accomplished for many, while others see a point that isn't there.
I'm sure the correct answer will be revealed in time. In the meantime, we can all have fun guessing and nunu can tell those of us who guess right in the meantime.
(XD I just kind of sit there, bemused and amused. This is such a guy's game... I can't even imagine a girl getting Nunu to post a picture of her nipple and it not being like... I don't know. Super embarrassing.)
If I were a girl, I'd so give Nunu a picture and have it posted, but then ask that my identity not be revealed, which Nunes would definitely go for cuz its hilarious while you all rip your hair out.