Originally Posted by
hedur
If someone is so allergic that a person in a different row can't eat the peanuts they brought on, then they should either not fly or, as someone else suggested, wear a filtered mask and latex gloves. That would be their only protection from the numerous peanut particles left from previous flights anyway.
Just because there might be peanut residue left over from a previous flight doesn't mean that people eating peanuts won't make any difference. That's like saying that if you smoke one cigarette, you might as well smoke the whole pack.
I have yet to hear a situation of a diabetic coming on a plane and needing to eat peanuts while another passenger has a peanut allergy. Yes, it theoretically could happen, and if it does, the airline would figure out a way to deal with it. But until then, it's not an issue, it's just an excuse.