Yeah, Imma need some proof to believe that. I give him more credit than that, no way he's dumb enough to ever give terminally online coomers real, personal info about himself, at least on purpose.
From what I can remember, The Friday Prophets are Swedish, as well as some of the other artists that have songs in the game, coupled with some nordic names in his games and some things DPC himself has said in the past here and there, people basically inferred he's Swedish, but I don't believe there's any concrete info about him out in the wild, other than him talking quite superficially about previous professional experiences in Q&A's and the likes.