Whatever happened to opinions of people, likes and interests. So what if its fragmented? Isn't forking a crucial thing in open-source anyone can build and support whatever the fuck the want. There are thousands of other tech forums why do we need hacker news to fragment tech community.
Publishing a weekend fun project on github and taking contributors away from from other projects is not always nice.
If it's just a "fun project" put a clear warning that it's not meant to be trusted, used, contributed to.
Github, by design, defaults to showing issue trackers & so on, giving the impression that a project is "real".
Then you go looking for something to use and find 100 half alive projects instead of 2 good ones.