I think you're painting it as more cynical and malicious than it was. There was probably too much naivety, but "open source your software and charge for support

I think you're painting it as more cynical and malicious than it was. There was probably too much naivety, but "open source your software and charge for support and operations" was promoted pretty heavily for a while not just by these companies, but by people who wanted to enjoy those projects being open source. And then it got torpedoed...