That link is a strong argument to support your position, no question. On this class of example, we have no disagreement. Those folks appear to have missed the seminar where they explain how this whole OSS thing works.

That said, I've said irrationally defensive things to people abusing my code when I'm tired and depressed, too. These are called passion projects for good reasons.

Where I would lodge disagreement is that I reject the notion that OSS is this pure, primeval mana which is made less righteous when people remember that they need money for rent. I don't think we should encourage people to see countless hours of volunteer effort as undeserving of financial support. I believe that OSS gets better when people are well compensated for contributing to it.

I respect the folks who are able to do it, but I resist the side-eye these folks often deliver when they hear someone is looking for a way to keep the lights on.

I agree with all that