Same here. I've never had snail issues or QT'd them at all. With acclimating, I do so if it's the first time I've bought them, so they get used to the temp, but otherwise no.
55 Gallon: Crowley: Melanoid Axolotl; Mischa: Melanoid Axolotl; Achlys: Albino Axolotl; Eddard Stark: Leucistic Axolotl
Furry Friends: Daisy and Holly: Dogs; Norman and August: Cats; Gilbert and Mordecai: Guinea Pigs