I can’t say I never downvote anyone but I get into these comment chains from time to time where really no matter what I post whoever I’m talking to downvotes every response but I generally shy away from downvoting even things I dislike. I don’t want to fall into an echo chamber where all I see are only the things I agree with.
I see a number of different opinions and cultures, which is why I chose my instance. .Today doesn’t block, so I can pick what I want to see and browse by subscribed.
Scrolling the All feed on .world tends to be more of an echo chamber than selecting about a hundred individual communities to check regularly.