12 ms·"proprietary" is the opposite of "free" (as in freedom), not of "free" (as in free beer).by q-big 5y ago"proprietary" is the opposite of "free" (as in freedom), not of "free" (as in free beer).nix23 5y agoThat's why i wrote FOR FREE...and please stop being a wannabe Stallman (he is already annoying enough).messe 5y agoThey may have been replying to the statement that it is expensive, rather than anything to do with its proprietary nature.