You only get it when the price is out of line.
Put it under someone selling a CZ75 for $400 and you won't get a warning.
In a way the mods slapping you is a negative comment because it's them telling you they think the price is too high.
We need a three strikes rule around here. As hard as it is to get a neg to stick, anyone with a couple or more needs to be shunned like a preacher at a gay pride parade.