The problem is that a lot of the crap is from fairly well funded sources. I see this making crap WORSE. Not better. All those really really bad games on phones are from fairly big (and trollish) companies. This won't fix that. These are the same companies that buy their own games to promote them etc. They have coin.
So it makes it harder for us, while not really improving the situation.
Greenlight as an idea is great. But then at PAX i had someone offer 1NZD per vote It is hard to get this to work on the internet.
Gate keepers don't work, since they will have strong biases that won't reflect "the long tail", smaller games that appeal to niche groups.
Apple store is a good example of that. I know of 2 companies that had to close their doors because they banked 100% on apple store. Only to be told no without any explanation. Yet look at some of the shit on apple store. It hasn't fixed it.
I don't know the solution. But i do know for the kind of games i want to make, there are plenty of buyers in the price range. But Connecting to them remains a big BIG problem.