[YetAnotherNick]

Examples? If you are going to say something like linux, almost every developer gets paid to contribute to linux(I remember 95% commits have company attribution). Same with postgres etc.

[ranguna]

They are paid, but the end used doesn't pay.

[YetAnotherNick]

End user are corporate linux users and they pay for maintenance? Perhaps you mean all the end users doesn't pay.

[ranguna]

They don't pay to the full group of Linux devs, they pay to companies like redhat, which does not represent the Linux kernel dev community.