[onion2k]

I didn't said that. I have just pointed that even close source developers are using open source when working daily on their closed source projects.

When I said "entirely closed source projects" I meant that literally - some projects have no open source elements. They're written in closed source languages that you have to pay for, with closed source libraries and frameworks that you also have to pay for. They tend to be things like control systems in small industries, unusual embedded systems, and so on.

The software industry is big and hard to make general statements about. "All developers will use open source code" is not true.