I don't know if it's that Rodgers holds a serious grudge over people. But he just kinda goes... ok, I'll remember this. Nothing like "oh Kornheiser you will get yours! Believe you me, before this year is over, I will have my revenge! muahahhahaha". I think he just kind of quietly takes a mental note and is like, ya I'll have to prove him wrong.
Case in point, John Abraham went out of his way to f with Rodgers. Rodgers nods it off and goes, "ok, so that's how you wanna play it then". Then goes on to utterly embarrass that entire team, especially Abraham.
I don't think we need to worry about what these media guys say about Rodgers in order for him to be motivated. I think he is motivated all on his own. He's been saying for a long time he wants to win multiple championships, the guy's hero was Montana growing up, you don't think he wants to follow in his foot steps? Not to mention as awesome as he's been for us, he has yet to win the division, so I'm sure there's some motivation there...