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.
Some people abuse the voting system, an example being users that get upset they lost an Internet fight and go downvote every comment and post on someone’s account.Also yes, there are some people out there that are miserable seeing others happy.