"Angry people demand; professionals “require.” " YES YES YES--it's not enough to merely be aware of the connotations of your words. You must also be aware of any unintended information conveyed through their use. For example, despite being synonyms, the use of the word "demand" in this context exposes one as an amateur. It doesn't matter if you think this is unfair. It matters that you know all information conveyed,…
Sorry, I know this is very minor and beside the point (ironic, given what you just said about relevance), but isn't that exactly what connotation means? >a : the suggesting of a meaning by a word apart from the thing it explicitly names or describes⁰ Or is this perhaps even more meta than that - the choice itself can convey something apart from the semantics of a word, and this isn't something that the word connotati…
The other poster is describing something a bit more meta than what the word connotation typically covers. They are describing something akin to a shibboleth, a great linguistics word. One's use of a shibboleth is an (often very quiet) signal of membership in an in-group. (c.f. usage #2 here: https://www.merriam-webster.com/dictionary/shibboleth )
An example: if someone steals your credit card, and you call your bank to report that, you could describe your requested action as either "opening a dispute" or "filing a chargeback." These are functionally equivalent but saying "chargeback" suggests that you're likely rather sophisticated about the mechanics of credit cards relative to most well-educated people.