Our waffle.io board contains "the truth", the chat is just blabla to keep the waffle board (=github issues) clean.
yes. i agree, its more a "wish", not so much a reality, but given better "automation" its possible. the gitter chat and waffle board will not work for a large audience or the general public :-) ...but GITHUB as such, with all its repositories, easy forks and pull requests for merges ... each repository eventually augmented with tools like "gitter" or "waffle" are an infrastructure that actually works for a large audience.
There are github repositories that include all the german laws and for all kinds of information their are "non programming code" related repositories that are used by the community.
github as a whole is far from perfect, but it created a reality which's practice is better then everything else i know :-) i think a lot of ideas should be copied from github and maybe github could be even used as a "backend" or "infrastructure" :-)