Jalapenotrellis wrote:Please educate a dumb guy on why you do this. I never thought about it, but I'd also not want bad things to happen to the cards. Will bad things happen?
If you keep your cards in box, or your rarely handle them and when you do, always making sure you are gentle and have clean hands, no problem. But if you're the type of person who wants to enjoy your game and you play a lot, and sometimes grab snacks while you play, etc. the card protectors are a way to help protect the cards from extra wear and tear.
Card protector sleeves typically aren't sealed, they're just sleeves, so they're not doing anything more than keeping dust and the oil (and occasional cheeto dust) from one's hands off the cards.