My favorite example of this is dropping a random acronym into a message board reply and repeating it five times without ever defining it, expecting every single person who reads your post to google it themselves to understand what you’re talking about, thus saving you having to type three words yourself.
“I tried BDI for a while, and I found the important thing is to focus on biased BDI and not just the vanilla BDI that you see so much of in the BDI community”
… tossed into a 30 comment thread where no other comments mention anything similar.