I had someone comment on a PR (that was closed by its author) saying that it had been over a month since the last part of the discussion on there and asking if I'd had time to do anything about it. I don't think folks realize how many things are competing for attention on github; I've turned off most notifications, but it's still a lot of stuff in my notification inbox. I simply don't have time to prioritize on closed issues or PRs; I barely have time for those that are open!