I'm puzzled by the downvotes. Am I saying something obscene or against the rules of polite discourse? I mean, I could be wrong sure but I don't think downvotes

I'm puzzled by the downvotes. Am I saying something obscene or against the rules of polite discourse? I mean, I could be wrong sure but I don't think downvotes are for disagreeing with what somebody says but for punishing behavior that lowers the standards of the forum. Am I really doing that with this comment? Do I need to cite all the articles and books I read to form this opinion or else I cannot state an opinion?