When it comes to open source maintainers, my perspective is really simple.

They are volunteers who spend their free time so that I can build cool things for zero dollars. My demands are proportional to the terms ‘volunteers’, ‘free time’ and ‘zero dollars’.

But if you’re this passionate about communications in open source projects, I know you could find hundreds of projects that need help with documentation and overall communications. Use the passion and good things will come.

So you think they can push whatever nonsense and liabilities they want upon users? No, they cannot. By offering a software, as advertised in its readme, they're in effect making a particular promise. They do not get an automatic right to violate this promise. If they cannot maintain the software, especially when it comes to major bugs, the repo should be set to Archived. In the case of this repo, since user interaction is disabled, it is even impossible to know which other major bugs may exist as would've otherwise been reported by users. Being a volunteer is no excuse to be horrible.