The people who campaign for GPL software authors to change their license seem to assume that the authors of the software naively chose the GPL, as opposed to choosing it for its particular spirit. That's really important distinction that people don't realize about the GPL - it's designed to protect the rights of the END USERS. And that's great when the end user is you and me, but it's also not surprising that we, as…
end users do not give a shit about source code (or software licensing at all).
Most end users don't care. Some do.