But that is not the interesting point - the interesting thing I learned is this: the original paper was published in an IEEE journal, and as an IEEE member, one of my membership benefits is that I can get permission for re-use of any IEEE-copyrighted materials for a processing fee of, hold your breath, $3.50.

You may of course think of copyright and licenses and copyright transfers to journals what ever you will. But I think that's kinda cool, especially that it took literally 5min to get the re-use permission online rather than argue with BMC over the merits of our Fair Use defense