It sucks that some people use the theme suggestions for their political statements. "Don't use Unity" or "$20ct per install" (and so on) - do you think these are good themes for a game jam?

Unity is a great engine - with a bad management. But for non-commercial games this doesn't matter. So what's the problem with using Unity? If you don't want to use it - fine. There are other great engines too. But no dev should be blamed for his personal choise!