I was surprised to hear that many open source developers get so many 'mean and entitled people' complaining on their project channels. My project https://socketcluster.io/ has almost 6K stars on GitHub and all I only ever get are people praising it - Sometimes I worry that people may even be over-praising it and self-censoring criticism (maybe they just like me as a maintainer). I think in its 7 year history, I only remember 1 or 2 complaints out of a total of several hundreds or maybe thousands of feedback comments, messages or emails. I do appreciate criticism though and those few critiques have been valuable.

I think maybe it has to do with:

1. Hype.

2. What percentage of developers were forced to use your tool/library against their will by their employers or forced upon them as a dependency of some other tool.

If a project is overhyped, then developers will be disappointed by reality and they will complain. The best you can do is try to set realistic expectations.

If a developer was forced to use your library by their employer (or it was forced upon them as a dependency of another tool/library that they're using and your dependency was throwing some weird error) then they will also complain. The best you can do about that is try to make your library work 'out of the box' as well as possible and make it work well in as many environments and operating systems as possible. Regulating hype by setting realistic expectations can also help prevent employers from forcing their developers to use a library. You should use more technical terminology instead of business buzz words when describing your project. You want to attract developers, not project managers.