Really? He was a "terrible human being" because he said something ignorant and was socially awkward / a bit rude in person?
I'm not defending what he said but this is a really backwards way to look at things. There are plenty of manipulative CEOs and public figures who are very careful with their speech while doing harm in their actions. Stallman turned down money for decades to do something good for the sake of public interest. There really aren't many people like that, in this industry or even on this site. It sucks he conflated his movement like this, but jumping to that conclusion based on something so shallow seems just as stupid.
It looks like it was just an ignorant thought from a decade ago that had long since been corrected. Not a strongly-held viewpoint.