Give me some bread

I want to know why they put those stickers on Shabbat bread. Yes, please enlighten me. I don't recall ever taking much notice of them, except for pulling them off before ripping apart the bread. But this morning I found out that they don't taste very nice, and if you're not careful, you'll find little pieces swimming around in your mouth for at least half an hour. And then finding a great wodge locked in one of your molars...why, why, why do they put those bleedin' stickers on?