The judges have mentioned in other threads that it -IS- about marketing (and that's not a bad skill to have especially in the current state of indie games where there's lots of games fighting for attention. It along with social networking are essential.) This isn't the first time IGMC has had a voting component, I'm sure the organizers know well enough to watch for any suspicious activity, bots, or duplicate accounts and such. Especially on games in the running for the top 3.