The amount of money is ridiculously small. It isn't worth the time to focus on it.
It is too bad the popular library doesn't have a competent maintainer. But at least he hasn't screwed it up.
Maybe someone should just write a replacement with better features and then we can all move on? Sounds like the best solution to me. Probably easier to do than dealing with him or even fighting him.
I guess I wouldn't focus on attacking this guy, it just isn't worth it. Life is short, the stakes are small, and it just isn't worth it.