Comments like his "douchebag" comment are Part Of The Problem and that's why he was banned. Your description of his comment as merely "impolitic" is only slightly more ridiculous than you referring to him as the "friendliest" guy you know. I probably shouldn't have pointed it out, but I did.
Regardless, I don't have any vendetta against him or care strongly about him being on the site or not. I realize he's a smart guy who just has a bit of an Uncov streak in him. No big deal.
For what it's worth I was a proud recipient of a 50+ score reply that started with "Fuck you!". Maciej's "douchebag" is clearly nothing in comparison and it hardly warranted the permaban.
Regardless, I don't have any vendetta against him or care strongly about him being on the site or not. I realize he's a smart guy who just has a bit of an Uncov streak in him. No big deal.