Kid Cudi has issued a stern message to people criticising his choice to paint his nails.The rapper, who has displayed non-conforming gender aesthetics in the past, said he felt forced to disable Instagram comments on a post of him pictured in a biking helmet and flashing his nails.Cudi took to Twitter last night (July 17) to explain why he decided to block out the negativity.“Turned my comments off on instagram,” he began in the tweet.