RPM or RPMs? ATM machine? Attorneys General or Attorney Generals (and how do you even abbreviate Attorneys General, anyway)? Yes, one version is technically correct, but folks still understand what's being said. I have my own triggers that sometimes set me off when I see them, but Life's too short to constantly be blowing a fuse over what essentially are relatively small things.
You forgot daylight saving vs. daylight savings and EMP pulse. If I had a nickel for every chance I could correct someone for such trivial matters I would have a lot of nickles. Notice how the spell checker allowed me to use two versions of nickle? Irregardless of whether you want to annoy people by correcting them such as using a word that doesn't exists (hint: It started this sentence) I have to agree with you life is just too damn short.