It's nothing to do with "politically correct". There's nothing wrong with SOME discounting. It's talking about slashing prices to ridiculous levels.
I see larger females snapped up. Other than normal females which are cheap, morph females seem to sell quicker, the larger girls always go first. Unless they're marked up crazy high(over market prices), adult and subadult females have always seemed to go faster than hatchlings in my personal experiaince.
Might not be what you've seen where you go, but that's what I've seen myself.