I dislike this implication that developers are greedy when the real tension is commercial interests vs mutually beneficial communal interests. Of course everyone expects to get paid, but developers
love community projects and protect them fiercely because there's no natural force that can. It's all up to the people themselves.
Sure, some minority of people are just greedy and rude. I think most people aren't. As far as being stingy goes, I believe I have paid more for software so far than most people will in their entire life time by probably multiples and I'm happy to continue to do so, and I will also be on every thread about a CLA rug-pull as well, because BS is BS, no two ways about it.