What's with all the new DownVote Bots?

Recently this account and others have been getting downvotes from relatively new accounts with just the 15 delegated sp. Fortunately, the downvote is not that much. But it is really lame to downvote and not explain why. At least if an explanation is included then the person can evaluate changing their action so the downvoter can be happy.

Ultimately I am against downvotes. I think some sort of punishment for spam should exist that disincentivizes spam. But downvotes for disagreeing with content I think is just a recipe for anti social behavior that the masses will likely not like. I think steem should focus on building people up not breaking them down.

So far the downvotes are not that much but if they become more powerful may just quit posting entirely and just sell/delegate SP before leaving the platform entirely. Downvotes are so very lame and nothing is worse when large downvotes change what someone expects to receive for return trying to fit into the steem ecology while not doing spam or anything that clearly has no value.