“Open source is not for free”
https://medium.com/modern-agile-thinking/open-source-is-not-for-free-524ad128b381
“For you as a developer, it seems to be free. The maintainer this is part of their free time. They give you a present to use their work for free
Please keep this in mind when shouting about the poor quality of the library. And try to contribute or make a small donation. This keeps our minds positive.”