My dislike of the Steelers dates back to around the time Terry Bradshaw blatantly cheated in the Superbowl by forward fumbling 5 or more yards as he was forced out of bounds. That's why its illegal now. Was a moral and ethical lapse back then.
And, during the time of "Last year we knocked on the door. This year we beat on the door. Next year we're gonna kick the SOB in!"
I always thought the "forward fumble" rule dated back to the Oakland Raiders and Kenny Stabler, fumbling the ball forward to defeat the Miami Dolphins in a playoff game.