I've been traveling to ATL for work the past couple of months and I've noticed that the escalator to the rental car center out of the South terminal is littered with the little stickers that the TAs put on your bags. It gets noticeably more sticker congested the farther up you are on the escalator. I even had time to stick one on tonight. Is this a thing like writing on the rocks in the trees at DTW (and yes, I know the rocks have been gone for years now)? Oh, and, they all seem to be well above average baggage height and more like average hand height.