Nothing is 100% safe. Just like with anywhere, it could be on the floor, armrest, etc. That already puts some risk, but why add to the risk by eating peanuts? That's why the airline pulls the peanut products and asks you to not eat them. It adds to the potential of having a reaction. Sure, I agree it is an inconvienence. You're asking hundreds of other people to accommodate one. But like I said before, in the scheme of life it's one flight. You're in a metal tube flying at 500mph at 30,000ft with nowhere to go - why add to the risk of someone getting ill if you can do your part? We are all in this together. Just my 2 cents.