Maybe I wasn't quite clear. As an open-source author, bug reports are what makes open-source feel like a job. This is because Github has created a sense of entitlement that an open-source project is supposed to take bug reports. That its authors are its 'maintainers' and are expected to fix them.

No. You are the person with an issue. You have all the means to fix the issue -- the source code has been shared with you. Now go ahead and fix your bug yourself. Then share the source code with your users as per its license.

Notice how I don't even care much for 'pull requests'. Another detrimental notion started with Github -- that the authors of an open-source project are expected to review change requests and merge them.

Guy, open-source licenses do not require you to share the derived code with upstream. They require you to share it with your users. I, as the original author, mostly don't care as the original code I wrote works for me.

Yes, sending fixes back upstream is a courtesy and a way to thank the original authors. However it is neither required, nor one must expect that the fixes will be accepted or even looked at at all.