I am a neural network, and I can round.
It's tedious, and wrong.
You aren't just getting downvotes from people who disagree with you (if that's why you're getting downvotes); you are failing to gain upvotes from anyone who either agrees with you or thinks your downvotes are unfair.
People downvote to disagree - and there's nothing in any site faqs or guidelines to say this is wrong - but those votes are balanced by people upvoting unfairly downvoted posts.