IF I think to insult them, I will make sure to take your comment into consideration. but since I HAVE NOT and do not intend to insult them, then it seems your point is moot.
For Your Information (FYI) it's common...
It's not common enough, apparently, because now you have more than one person reminding you about it.
I wasn't sure what the acronym stood for until I came to this comment explaining it, so maybe not all that common
Not very common among the readers here and hard to look up