"If we look at web applications, you can be assured that the vast majority of them use free software somewhere in the stack." There's a difference between them

"If we look at web applications, you can be assured that the vast majority of them use free software somewhere in the stack." There's a difference between them being proprietary software and using some free components somewhere. You about to suggest Windows ecosystem is open or free because they used some open-source code in Windows somewhere? Or IBM's mainframes are open because they can run Linux VM's? Or the Facebook platform itself is open since they use and contribute so much FOSS? They're all still proprietary with the motivations, methods, and limitations that come with it. They can use whatever available components they want to build proprietary software. It's still the dominant model, though. That's why I'm constantly running into systems I have no source for, can't modify, and can't extend to deal with their horrible UX. They're all closed to me even if some OSS or FOSS is inside.