You have to eat nuts pretty slowly for this to be a problem in my experience. I have had nuts go rancid but they were really old. It's like sauces - they say "keep refrigerated" on the bottle but if you use them consistently it's better not to crowd the fridge/keep space for higher priority things.

Instructions unclear, nuts stuck to ice cream, send help.

Huh, I thought oils went rancid because of oxygen? I didn't think cold slowed that process for oils very much.

Yes in walnuts, yes. I just tossed a bag not long ago for that reason.