I hate acronyms.
There's something inherently ugly, opaque, even anti-poetic about them. If I could, I'd do away with them altogether.
Oh, I'll concede them a certain prosaic utility. The term DNA has saved a lot of time and breath down the years.
Point conceded. I would, nonetheless, contend that their use is best restricted to secular contexts. They have no place in religious vocabulary.
Let me pick on a particular example. The term UPG—that's "unverified personal gnosis" to the uninitiated—has gained a certain currency in pagan circles since it was coined some time in the late “20th" century.