There's an easy experiment I've accidentally run.

Find a thread with a consensus emotion. For example, say that something is a scam, so you have outrage, mistrust, and scepticism.

Take some words from the opposite emotion, calm, trust, believe. Use them to make a point that agrees with the consensus. Watch the downvotes roll in.

People will focus on the emotions from the individual words and not think at all about their meaning as a whole.