Comment by jondubois

My project's main repo has 150 issues (only 7 still open) and it works out pretty well. Usually contributors will answer each other's questions and help close issues.

I suppose that could be a problem if you have 7000+ issues (as is the case for Docker) - But those projects represent an extremely small percentage of all OSS projects on GitHub. Also, these projects usually have a lot of contributors, so maybe those contributors could help filter through and tag/close issues as necessary?