Anonymous 08/02/2017 (Wed) 02:06:36 No. 10531 del
Echoing >>10522's second sentence.

About half of my career income has been from proprietary software development and the rest from coding at companies that were using open source software to save money on tailored internal systems that were never sold or redistributed.

Regarding companies that profit from GPLed code, it may be just as important to ask "who saves money" as it is to ask "who makes money."