Is 10 votes a lynch?
And how do you define genre? Isn't everyone saying fantasy a bit uninformative, since that could mean anything?
And is it geeky to think a buffyverse bastard role mafia game would be awesome?
Fantasy as a genre should be Swords & Sorcery. If you claim Fantasy and it isn't a medieval setting with the potential inclusion of Magic and Elves Dwarves and the like, then it's not Fantasy.
To further clarify: Harry Potter, World of Darkness, and Twilight are Urban Fantasy.
Why to claim Genre? Maybe somebody has something in their PM like: "One of the mafia is a wizard who always wears blue". Well, by gaining Genre information, he's got a better idea of who might be that mafia. This is a simplified example, but it gets the idea across.
We could potentially do other not-full-role-claims as well. Like "class" claims (a la fighter, rogue, wizard, gunslinger, face, tech, medic, etc). I'm not sure what, if any, of this information could be useful to someone...but the more information we get out there, the more likely it is to be useful. And the vaguer we can be about it, the harder it will be for scum to use to their advantage. Anyways, that's why I think some surreptitious claims can be useful in games where there is unknown hidden information.