I know we're all pressed for time, and that if you're writing a long report in which you plan to reference "self-contained underwater breathing apparatus" or "international standard book number" many times, it's much easier to call them SCUBA and ISBN. I admit to using "ASAP" and "FYI" myself, because everyone understands them; along with "TMI" and "WTF?" because they're amusing. But I didn't become a stay-at-home mom solely to gain the shiny new acronym of SAHM, which makes it look like a disease; and IMHO (in my humble opinion) and AFAIK (as far as I know) have always bugged me a bit.
Back in chat room days, we pegged annoying dorks instantly by their use of "A/S/L?" ("Age/sex/location?," or "Where are you, are you hot, and are you old enough to cybersex me?"). The other day I saw a post ending with "KWIM???" Took me a second, but I got there--"Know what I mean?" Now, was it so hard for me to type those four words? Why, no. No, it wasn't.
What are your acronym pet peeves? Or pet loves?