Hyperscalers like Amazon exploit OSS projects by reselling them as a cloud service and they earn a gigantic sum in the process. But this is not a neutral thing to do - the OSS project is still responsible for maintenance! (And in many places, the "no warranty" clause seems completely disregarded - users and corporations demand bugfixes since it's a "critical library")
The most telling sentence is "Open source culture relies on trust. Trust that companies you and I helped build (even without being on the payroll) wouldn't rugpull."...
where is any trust in exploiting someone's work without giving anything back? the hyperscalers routinely break the OSS social contract, but because they abide to the letter of the licences, they get a free pass and many white knights from even the OSS community and even OSI itself.
A business model of "you can see the source, you can modify it but you can't offer it as a service or resell my work" is much more honest and trustworthy than the "develop a library, a cloud service picks it up then pressures you with PRs and issues until you permanently burn out from the whole thing"
This is partly addressed by the post - "But you know what? I'd just prefer honesty. If revenue is so dependent on selling software, just... make the software proprietary. Don't be so coy!".
This is not honesty though. Claiming that anything not party-approved.... I mean OSI-approved is not open source and it's proprietary is a very myopic thing. For users and developers, it's much more beneficial if they can see or even modify the source even if they don't have an unrestricted right to use and modify it however they want. This absolutist, black-and-white approach could potentially lead to many pieces of software becoming fully proprietary, all-rights-reserved in the future since the open source community harasses source available projects quite frequently, and not many have the patience to put up with that. And that would be a sad outcome indeed for user freedom, repairability, portability and other values RMS and the FSF dearly holds.