What if you could respect/dismiss while also agree/disagree? Something like a compass rose instead of only up/down. You could weight the values for display differently if needed as time goes on and make respect only somewhat portable into new discussions.
Interdasting idea. What would the compass points be?
I know some sights have done something similar where they have like “reactions” section directly adjacent to the comments. “Funny”, “shocking”, etc. Doesn't seem like they really caught on but I still see them around from time to time.