Stickers?

Figured these should come off of the barrel when you buy the gun but I've seen some guys at the range and they're still on. I've even seen a rifle in the EE that still had the sticker on the stock. Are these supposed to be left on? You can see what I'm talking about here: https://ibb.co/Bcnk230 (still too new to embed a photo it seems).

Same as this, IMO. Is it supposed to come off? Yes. Does it look goofy as ####? Also yes. Do people do it regardless? Again, yes.

I'll do whatever I want with my gun.

I use my Rascal with the stickers and I got it used from another guy even. People don't like it don't look at it.