For a sufficiently large project (let's say 100k issues+), I think it's totally reasonable for some vanishingly small percent (say 0.003%) of issues to be reall

For a sufficiently large project (let's say 100k issues+), I think it's totally reasonable for some vanishingly small percent (say 0.003%) of issues to be really quite hard to reproduce/debug/fix without breaking other things. I don't think that in any way implies the maintainers don't care, and to not submit reports because you fear you'll end up in the 0.003% rather than the 99.997% is a bit silly if you ask me. I maintain such a project, and most bug reports I can fix in a few minutes. Others take a few days. Still others need to be deferred until some large refactoring is completed in coming months. Others still are involved to the extent that I'm not sure I'll ever fix them. But I value them all, and there are many more in the former categories than the latter.