You might ask a question and then you see a answer that's good and then give them MHO. Then someone else comes along with a answer that's just as good or even better and if they're the same gender of your orginal MHO, you can't use it.
Most Helpful Girl
Eh, I don't think it's necessary.1
Most Helpful Guy
That is not a bad idea an asker upvote that is worth 3 points or something2