The experts at Oxford Dictionaries Online explain that the initialisms added to the dictionary are “noteworthy” and even happen to be “found outside of electronic contexts” at times.
We will refrain from using an acronym exclamation to respond to this news.
What about <4, which is like “I love you just a little bit more than regular love can express,” or <8 which is like “I love you infinitely”? Step up, OED.