RMS wrote about free software and open source (which is different): https://www....

Polylactic_acid · on Jan 30, 2020

RMS has basically single handedly tried to push "Open source can be proprietary, only free software is good" Every other orgs definition has had Open source mean the actual license is open.

"Free software" is also an absolutely awful term because for 99.9% of the population "free" means it didn't cost them any money. This will never change no matter how hard RMS tries because its a very common and understood word.

gnomewascool · on Jan 30, 2020

According to RMS, in the link posted above:

> The terms “free software” and “open source” stand for almost the same range of programs.

and he definitely doesn't claim that open source is proprietary.