To me, this falls under the taking away tag rules they are doing these days. Some schools tossed out red pens and use purple because red meant "bad".

Some schools don't even assign number grades anymore. It's a joke. So the kids that work hard and are high achievers need to do it secretly so as to not hurt the feelings of the kids that didn't? What does that teach? It doesn't teach responsibility of actions, pride in achievements, and how to deal with disappointments and failure. I tell ya, I've said it before, we're raising a bunch of pansies.....