"The goal is to have a system that is very simple to understand and modify and that is able to handle a very high load using a small virtual server, ensuring at the same time a very low latency user experience."
I don't think I prefer scalability and low-latency over a high-quality of people discussing things I care about. The focus should be on community, not handling a large number of users.
https://github.com/antirez/lamernews#readme