So you hold that ReiserFS instantly became evil when Hans Reiser murdered his wife, even-though ReiserFS was a filesystem, developed by multiple people .. too?

There is a Principle, which the US Marines hold to:

nazis made more-protective helmets for their troops?

Steal the design, don't accept their doctrine.

Someone made a better truck than we did?

Steal the design, don't accept their doctrine.

That's an excellent paradigm: differentiate between the technology vs the ideology.

People who hold that ideology is the whole of reality .. do profoundly-idiotic things like insist "you can't impliment efficiency, because the last person who pushed it was a nazi".

Using an ideologue's software to displace ideology, absolutely is valid use.

Same with any technology, like the barter-replacement called "money": some uses are evil, others good, & some turn it into a religion, & many insist that because some make it a religion, therefore it "inherently" is a religion, & no other relationship with it could ever be valid..

Same with the technology of a "business", by incorporating it as a Public Benefit Company, & operating it that way, even-though other corporations are operating as anti-benefit/anti-public companies.

The technology is itself, the origin is itself: they are independently themselves.

As Torvalds identified, once you release something in GPL-2, the community can't have it taken-away from them: it's theirs.

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