Good thread olllllo. Let me beat the horse a bit more, courtesy of my Comm major.
The purpose of communication is to reconcile the gap of understanding between two human beings. That's why connotations, allusions or "inside jokes" are so powerful - we know what the other person means without having to thoroughly explain it.
Should we stop using SWMBO? ...taken literally makes her sound like a harsh, cold, control monster. But we all use it as a great, inclusive, supportive term, with affection, for our better halves.
So, I totally agree that it's not the proper usage of those terms, and I want to validate your request - I, too, call people out when they're using a term incorrectly. But if the vast majority of people get the idea (anal = be meticulous) and (obsessed = think about all the time), then effective communication is happening.
So it goes.