I certainly don't think inquiries about Magento 2 belong in the magento.stackexchange; can we hurry up and confirm/enforce this? I feel all inquiries should be directed at the brand and/or the repository.
I think some question which fit squarely into the "issues" bucket belong on GitHub. But for questions which do not rise to the level of "hey something's broken" or "hey I have an architectural suggestion / improvement" are noise in a GitHub context. My opinion of course, and curious to hear the opinions of others.