Acronyms are all the rage nowadays, mostly driven by Internet spek and a means to simplify and make communication more efficient. IIRC, IMO (usually emboldened with an H between the M and the O so that you know it’s real), FWIW, ICYMI, etc., etc. I try to stay away from these heavily used acronyms as much as possible when I frequent sports forums, Facebook (which I rarely use anymore, recent [read: the last 50-some hours] activity excluded), and Twitter (which is odd seeing as you only have 140 characters to work with). There are times though when I absolutely enjoy acronyms and many of these are done not as a means of shortening household cliches, but as an avenue of describing a type of person, an interaction that you have with a person where you ponder, “Oh, damn, this one of those ‘letter’.’letter’.’letter.’ moments,” and as way of communicating something to friend(s) that is on a plane of understanding only you and them know. And sometimes, acronyms are just what they are: a pneumonic device to help a person remember an important piece of information.