I think about community quality content a lot. I see a lot of abuse of this all over reddit and other forums and stack overflow too. People have figured out how to game the system. I think the internet is ready for some forum software that uses machine learning to decide whether content is high or low quality. It could analyze the replies, the context, the content, the user's history, posting rates, all sorts of data is available to recognize low quality content and low quality users. Especially when you realize that a lot of reddit accounts are bots that farm points and then get sold. ML seems like the only real way to protect communities against this!