I guess if we are counting karma as points or lines of code, but not showing some gratitude from those you meet along the way or demanding things others is just impolite. The original Mesa developers gave their code freely and so did Valve. Bringing up copyleft every time someone contributes like forcing developers is a better way is a pain. It is much like all the "Why would I use X when I have Y" comments that float to the top.

A second point on the "more grateful" as the GPL values 1 line over 1,000s of lines of MIT, so I don't see how that can be an argument.