Originally Posted by
SirFlysALot
There was the chance the gate agent might not have let you board because the secret TSA stamp and initials were not on your boarding pass.
I highly doubt that ORD GA personnel care about TSA scribbles on BP. That is UA's largest hub location, with literally thousands of connecting passengers daily. I don't know about you, but my connecting BP stays in my pocket until required to board the aircraft, TSA never sees it and, therefore, never stamps/scribbles/baby draws anything on it. I have never been stopped for that.