My open source project was relicensed by a YC company [license updated]

Things like this are why I have become disillusioned with Open Source, and why latest projects have been closed source. The GPL is a good enough idea but it is basically impossible for anyone to realistically enforce. If a corporation is selling an optimized binary, then it can be almost impossible to prove that there was any violation of the GPL without viewing the source.

Well, if you're writing open source because you want to write open source, then none of this matters. If you are worried about corporations stealing your work, that should drive you away from OSS. OSS should stay "hobbyist" for the individual developer.

Sure but it sort of devalues labor.

If a corporation is stealing your OSS code (and violating a license) then that implies that they think your code has value, they might have paid a person to write that code but instead some hobbyist built it for free and a corporation steals it.

A few months ago, I made a pull request to LMAX Disruptor, which was merged. I was initially excited because even if my PR was simple it’s still a big project that I contributed to. But after a few minutes it occurred to me that I just did free labor for a for-profit trading company. If they merged in my code then must have thought it had some value, and I decided to dedicate my time to saving this multi million dollar company some money.

My PR there was pretty simple and only took me like 30 minutes (if that), so I am not going to cry too hard over this, but it’s just something that made me realize that if a company is going to use my work, they should pay me. I don’t think it’s wrong or weird to want to be compensated for my labor.

I am still a hobbyist. Turns out you can still be a hobbyist without sharing everything you’ve ever done on GitHub.

That's the caveat, the contract you sign when you start an open source project. You have to have the mindset of simply not giving a fuck about who does what with your code and how much they make from it. Then you can be at peace. If you don't want to (or can't) adopt that mindset for a particular project or at all, that's completely fine and normal. OSS is not for you. As soon as you want compensation for your work, things start to go south. See the whole core-js situation and what went down for an example.