Guys, don't take me wrong, but I think leaving generic themes should be the best idea. Because people (like me) have been brainstorming ideas and might have already concepts written down for each theme and 1 day before the jam, you're already deciding on actual themes with actual meaning?? Jut stay with the generic themes the jam organizer gave us and let's vote. Because now, we who already had ideas, have to brainstorm and think a lot again.
I think it is a bit unfair for people who already started having all the work writing ideas for games. And I wrote consistent concepts for EVERY theme. Not just little descriptions of ideas, actual pages saying how the game would play and all. And I'm sure other people did the same as me. C'mon, guys, just go with the original themes. I would be okay with it if you had taken that decision 2 weeks before the jam. But 1 day, that's extremely unfair for a lot of people.