As someone that has recently opened a bug report on a popular open source project, with a very simple and 100% effective reproduction process, I had a back and forth with the maintainer telling me to "what happens if you do X instead?"

What is the point of me providing an example case if the ones that know the internals of their code don't try to reproduce my bug?

Yeah, I know OSS devs do not have time/are unpaid. My point is however complete your bug report is, nothing guarantees it won't go stale without anyone having taken a real look at it. In my experience 90% of bug reports, on OSS or commercial products, die this way.