[joergrech]

That might be right for side-project in the beginning but what happens when they grow and thousands or even millions use them? There might come a point when you have too much work and not enough time to fix the bugs or develop new feature requests.

[Mikeb85]

You don't owe anyone a bug fix. They can fix it themselves and merge request.

[meotimdihia]

Sometimes, the OSS (a popular) owner can't even care to merge pull requests. Because it also takes time to read the code too and make decisions to merge.