I think I’ve settled on the latter. Disagreement is maybe best communicated by the absence of an upvote? And downvotes work best when they signal something that is just off base, and while not reportable, is not appreciated at a broad cultural level.
Sad part of the design is that I need to interact with a post to get it off my feed so if it’s an some stupid meme or whatever i just downvote and move on to clear up all the repeats.
The setting is off by default but you turn on hide post after interaction in the settings.