Mine is OOO for Out Of Office. I always misread it in my head like a ghost and it takes me a few seconds to process. It also doesn't translate to speech—you have to say the whole thing.
Interested to see if others have similar acronyms they beef with.
See, I feel like I have to do it to show some levity, since tone doesn't come across through text.
There's a big difference if you're talking with a friend about something stupid they did, and saying "You're such an idiot lol" and "You're such an idiot." One is teasing them, the other is chastising them.
That's a bit annoying, but at least it represents laughing. What I hate is when it's just used to "lighten the mood" and doesn't represent laughing at all.
And, the proper way is "jajajaja", as my Spanish-speaking friends have taught me.