Today while I was looking at a list of open pull requests I still had open on Github, I was surprised to see a pull request that had been opened 2 years ago that I did not recall authoring, so I clicked on the PR. Turns out, I did in fact write the pull request, and it went 2 years without so much as a comment, let alone a review from the project maintainers. This is also not the first time this has happened with my contributions to a third-party dependency I was using.
I understand the nature of open source, but I also find it negligent for some owners to abandon their projects without either archiving it or transferring ownership. I don't expect an owner to be actively developing code for their project, but reviewing the project once every 90/180/365 days? That's not a big ask, we all have 1 hour in that time we could spare to at least take a look.
There's a difference in the level of effort between fixing a broken dependency for my own need, and contributing a fix back to the dependency for everyone to benefit, so it's a true shame when those efforts can't even be acknowledged.