No, you're right, I was thinking of Yuletide rejections for rule breaking. Still, though, you're looking at a sizeable number of people with DNMs, explicit (if the exchange allows) or implicit (by way of tagset gaming). The issues this kind of behavior create are literally why exchange etiquette has historically encouraged people to be gracious and move on, and I don't find the arguments that rejection is clearer than either communicating the issue or sucking it up and leaving a nice comment persuasive.