Why does that matter? People always say that about open source! “If you don’t like it then fix it yourself!” And then they complain that no one wants to use it!

You can’t have it both ways. If you’re just building it for yourself then keep it to yourself. If you open it up to the public then people are going to complain if there’s issues (or just ignore it outright if it sucks).

Having said all that, I do have a lot of sympathy for volunteer devs who promise to fix issues after they complete some core rewrite or major refactor, as long as they’re open about it and make a good case for it being necessary. I have a lot less sympathy for developers who are forever bored of fixing issues and just want to endlessly break things by doing rewrites and other fun hobby stuff. If you’re going to do that then don’t present your project as if it were part of the open source community; it’s your hobby, not a community project.