Dude, chill! Marcos is a great guy and I know him well enough to say that he didn't mean to piss you off. Read the quote carefully:
He said "Don't take it personally", so don't. And Marcos is not a jerk! He's a guy with an opinion, (much like him), but I think he looks pretty objective at stuff and has good arguments when he doesn't. You can ask anyone who's been here for a while, and I'm sure they'll all say the same thing: "Marcos is a great guy", and I know he was only messing with you. Nothing serious, alright?