Stop posting SteemFest videos from the official SteemFest Youtube account. This happened back in Nov. of last year. Plus, when you try to downvote someone's post, out of spite I assume, make sure it isn't 7 months old already.(It doesn't "do" anything).
RE: SteemFest² - Conference State of the Apps with good-karma, heimindanger, noisy, prc, furion, ekitcho