Understand that our platform is not yet ready. You're signing up through our splash page to be a part of GameStarter when we go live. You are not looking at a ready platform. I can assure, once it's ready, GameStarter will have everything you need to efficiently collaborate, not a 'hackathon' as you said.
I fail to see how gathering creators and players from the crowd, to collaborate together to validate and create games, is not crowdsourcing. Check crowdsourcing on Google.