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Essentially not. All those accounts are doing is giving an upvote. So there is no real way to stop that from happening. If if you added to the code and basically said that a vote would be nullified if a person sent money to the memo before the vote occurred or something of that nature then it could just be written to fire the upvote off out of another account.

The whole upvote service could have happened from Day 1 in 2016 but I feel at the time it didn't because so many had some sort of utopian outlook on this platform and that seemed to go against the culture here are first. Then when it happened it was clearly something that people had different opinions on. Now we are seeing it pressed to about the max.

Any attempt in code to stop the upvote would be like this.

The only real way I can see to stop it is having Steemians with over 1000 sp and a reputation of 50 or something Steem Connect to another site and then vote on certain topics like flagging @haejin or other things of that nature and that the witnesses would carry that out like a representative of the communities wishes.