I know the feeling of this post, but not at the level this person received.

I did several weeks of work, a few hours a night modernizing some docs. This included reverse engineering and rewriting a Markdown target for an autogenerated documentation generator which didn't have one. There were good responses, but people also complaining and asking why I bothered doing it.

Between this and Copilot scraping/training, I'm a lot more hesitant to put anything on GitHub.