Except that the unpaid giving is voluntary and often done very enthusiastically. The paid giving, of course, can be forced (or lose job).

As for the receiving, anyone can take advantage of this material to improve their free market business as well as however one might gain from having access to no-charge software usable with few if any restrictions and with the ability to change it to suit.

That’s hardly communism. Are all hobbyists now communists? Are all private donors communists? Are all nonprofit corp employees communists? Are all people paid to collaborate with competitors on some projects communists as well? The people insinuating that this is the case should lose their jobs for dishonesty or for some level of incompetence (unless their jobs skills require one or both of these skills).