Right. It is weird that this has to be explained, but let's make it clear: in the Before Times, probably anytime up to at least the late '00s, probably approximately no-one in or around free or open source software would have endorsed the idea that the legal disclaimers completely free even the most mainstream, self-publicising, broad-userbase open source projects from any moral or ethical obligation to have even the slightest concern to ensure that their software doesn't hurt or betray its non-paying users, even in the most harmful ways. And if one of the many and often vocal FOSS opponents of the time had started claiming that this is what open-source developers really believe they'd have rightly been seen as having veered off into the lunatic fringe. And that's because it's a, frankly, bonkers idea which is radically detached from normal human understanding of the social and moral role and obligations of volunteers, voluntary organisations, charitable givers or gift-givers. And also because it's a wildly counterproductive idea to put out there if you're hoping to increase FOSS adoption.

That does leave the question of why this idea has started to take off more recently. Part of the answer is certainly that Rich Hickey, disgracefully, set the ball rolling in this direction, and that many others have welcomed it as one weird trick and one pat answer for all the worsening problems of developer burnout. Unfortunately it seems hard to dismiss the idea that it's also social breakdown driven by a broader trend, as over time we move further and further from the pre-'60s "neurotic society" of people obsessed with duty and social conformity (often with oppressive or destructive results, to be sure) into the "psychopathic society" in which even people who don't themselves merit a Cluster B diagnosis have internalised narcissistic and psychopathic attitudes.