> The most common belief open source maintainers have is that offering something for free gives them the right to some of their users’ money.

Utter horse pucky.

If there's a common misconception around corporate open source, it's the belief that it will reduce the maintenance burden by sharing it with volunteer contributors, or (for major projects at least) that releasing open source code will lead them to be in control of a standard, rather than (if they are lucky) having influence over one.

But individual contributors have such differing motivations, I have no idea what the evidence base for that first line is.

And it continues in that vein. So much [citation needed].