No amount of altruism or engineering work entitles you to lie/cheat/extort/defame/...
When you publish something under an open source license, you entitle the rest of the world to use it to get rich. That's what the license says on the tin, what the licenses have always been advertised, etc. I have absolutely no problem with AWS or WPEngine using that entitlement, nor do I have any problem with any software engineer (or software engineering organization like AWS) choosing not to publish source code they didn't promise to. Even if I wasn't of this opinion though - I don't see how someone violating this supposed prohibition could possibly entitle Matt to lie/cheat/extort/defame/...
Edit: I know it's off topic to talk about flagging, but can we consider not flagging the comment this is in reply to? I think it's generated valuable discussion for people learning about this case... even though I strongly disagree with the author.
The extortion was to get them to contribute or pay somebody to contribute. And the threat was to withdraw his own resources.
I wrote a blog post about this: https://ma.tt/2025/09/externalities/
This open source purism only benefits the leeches.
This is the same defense I see repeated for Amazon and Google, and they're two of the biggest destroyers.
Honestly OSI and their definition of "open" has been a scourge. Google and Amazon encourage this thinking because it benefits them.
You can have non-commercial "fair source" for customers that prevents vultures from stealing your hard work. That's ethical, yet it gets dunked on by OSI purists.
You can demand that profiteers be required to open source their entire stack. But these licenses are discouraged and underutilized.
But when this keeps keeps happening again and again and continues to be met with victims blaming -- I'm disgusted by the open source community's failure to be pragmatic and sustainable.
You have to give away everything or you're the bad guy. And so what did they take and take and never give themselves?
Open source has a problem.