Although it contains some truth, I don't believe it accurately reflects history or Stallman's claims. jwz's[1] page on emacs history is more useful.

1- http://www.jwz.org/doc/emacs-timeline.html

But what kind of point is that? If it was really paid for by the taxpayers, it should be free (free as in free beer and free as in free speech) because it was funded by taxpayers. How is arguing that it should not be free any kind of solution to this (imagined) problem?

Exactly. The real disgrace is all those technologies developed with taxpayer money and yet patented, closed or restricted.

Please go find a copy of Hackers by Steven Levy at the local library and read it. Yes, all of the core stuff done in the 60s through the 80s that most of us rely upon as the fundamental underpinnings of our craft were developed either at universities as (D)ARPA projects, or by a small handful of corporations like Ma Bell, DEC, Xerox, etc. By the mid to late 80s you could also add some government funded work out of European universities and labs (like this little thing called the world wide web that was created at CERN...)

BRL-CAD. BSD. Bind. There are quite a lot of them, actually.