They saw cents when the songs were sold originally; it’s not like I’m running a music charity.

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Assuming newer versions are derived from code that was licensed GPL in the old version, the newer versions (which include new code) are also licensed GPL, whether the person writing the new code likes it or not.

Realistically one can come up with any number of axes and still be wrong, because the domain of politics isn’t a metric space.

That’s a political compass, and it’s still missing several political axes.