>>1112805It contains enough of the allergenic kinds of peanut traces to cause an allergic reaction, so the sticker is necessary. Here you have to note it on the package if peanuts are processed on the same line because the traces that might jump products might be dangerous to some.
I knew a guy who accidentally killed his girlfriend by eating ice cream that contained peanuts and then giving her a kiss. Peanut allergy can be like that.