Your point seems to be “open-source-with-monetization now has a problem, but altruistic-source doesn’t”. Maybe the linked blog was that narrow in focus on open-source, and you force-expanded it to altruistic-source.

I think projects with principles are in the same quandry as those with a monetization objective. Software under GPL-like licenses has a problem, LLMs slurp up Linux and GCC source code and spit out non-compliant derivative work. It is no longer possible to promote principles by contributing in the open. There is also no hope of software authors winning damages from companies the way book authors seem to have won in court.