Yes, he is a cheater, but so was Gaylord Perry, and I would have loved to have him on the Red Sox.
BTW I have in the last year or so noticed a number of pitchers wiping and rubbing something off their pitching hands after they have been removed from a game. I have taken notice because, it is always the pitching hand that they are rubbing and cleaning with a towel. I have seen Schilling and Mo do this among others. Maybe many pitchers are using something other than resin to give them a better feel or grip, but they are just more discreet than Rogers..