Even better: a social group with a lot of invented lingo is a red flag that you can see before you get isolated from your loved ones.
Edit: it seems most people don't understand what I'm pointing out.
Having terminology is not the red flag.
Having intricate terminology without a domain is the red flag.
In science or mathematics, there are enormous amounts of jargon, terms, definitions, concepts, but they are always situated in some domain of study.
The "rationalists" (better call them pseudorationalists) invent their own concepts without actual corresponding domain, just life. It's like kids re-inventing their generation specific words each generation to denote things they like or dislike, etc.
sure, theres lots of nasty side effects of how academia is run, rewarded, etc..
but thats not because of precision of language employed.
do you want scientists recycling the same words and overloading ever more meanings onto ever more ambiguous words?
I think your argumentation is a generalization that's close to a rationalist fallacy we're discussing:
> a social group with a lot of invented lingo is a red flag that you can see before you get isolated from your loved ones.
Groups of artists do this all the time for the sake of agency over their intentions. They borrow terminology from economics, psychology, computer science etc., but exclude economists, psychologists and computer scientists all the time. I had one choreographer talk to me about his performances as if they were "Protocols". People are free to use any vocabulary to describe their observed dynamics, expressions or phenomena.
As far as red flag moments go, the intent to use a certain terminology still prevails any choice of terminology itself.
If you have groups talking about "expected value" or "dot products", that's different from groups who talk a lot about "privilege" or "the deep state". Even though the latter would claim they're just using jargon between experts, just like the scientists.