I'm with Hive account@simplymike on this one. The most abused area, or on topic I should say, is in the area of Photography. I've seen some very beautiful posts where I seen downvotes by the SAME name or group of names (I've been noticing 3 of the SAME names) that have been just RANDOMLY picking out posts and downvoting them with NO REASON left by the downvoter in the comments on WHY the post deserves to be downvoted. If we are going to use downvoting legitimately, then I think EACH downvote should be REQUIRED to list a REASON for downvote in the comments to HELP the person whose post got downvoted to improve their content in the future here on Steemit.