I certainly don't have all the answers here but the entire $300B+ SaaS industry (and a bunch of other stuff that behaves like SaaS) was built in great part on a loophole in the GPL. More precisely, many of the people who licensed their code under GPL were eventually dismayed when they realized you could sell access to whatever you like built on top of that code, over a network, and you wouldn't have to distribute the source. The AGPL was devised to close this loophole.
There are really two dynamics at play, one is that there are people who want to give a gift to the world and promote a culture of sharing, in fact they want to REQUIRE you to pay it forward if you use their stuff. That's the ethos behind GPL and AGPL. It has proven to be way more effective than the bean counters expected!
The other dynamic is the more conventional profit making and taking which has perceived a loophole and used it to make some extra bucks on the backs of the nice sharing guys.
I don't have anything against profits, I like money and I own a business where we choose to keep some code totally closed source because money. But you can't deny that this division exists. And I think this dynamic is what most of the dilemmas in the OSS world really arise from, there is a strain of altruism since the early days of the movement which has been betrayed, for many it feels awful if you've released GPL'ed code and then watched Big Tech promptly pile a bunch of proprietary code on top of it and use the resulting machine to strangle the freedoms of the human race over the Internet. You don't automatically get to squeeze profits from a thing just because it's out there and it's shiny and nice. That may not be why the author built it. It may be a betrayal of their intent if you do.