Earlier quoted context omitted.
It was a bit tongue in cheek - I have actually had paying gigs working on open source in the past. But the point about where the money comes from stands - Google's money comes from their proprietary stuff. I actually think something like Google is a pretty good way to produce open source software, by the way, but it's made possible by the money made elsewhere.
I'm not sure it was necessary to refer to the "I'm not good enough" thing. It really has little to nothing to do with your point. Because you've just undermined your own example (Guido Van Rossum / Python / Google) above, it weakens your position. If I get it correctly, your point is that one requires copyright for open source software to be viable, by opening up a revenue stream to support the (free) open source par…
If trademarks are the main protection, the main barrier to entry is branding, not technology.
(IANAL)