I know this topic has been discussed on this forum previously...but it's been a couple of years ago and I am sure that life and circumstances have given way to new and improved things that tend to bother us...pet peeves, if you will. I will lead off with this one:

The self-appointed lurker who feels it is his or her duty to correct your spelling, grammar, or punctuation on every post, text, or e-mail...even knowing that sometimes you are 1.) in a rush to get a point across, 2.) accidently hit or omit a key, or 3.) that auto-correct has stepped in to change what actually made sense into something that does not!

That said, TTUN should never be referred to as TUN! Haha!