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That's the thing that's nearly impossible to determine. I'd imagine it would be possible to drill down and see if a specific 'vote for others ' user is bidding for the same user on multiple ocassions.

Also if a person transfers lots of Steem/SBD across the same accounts, they are probably the same person.

But, yes, it is very challenging to determine multiple accounts for individuals. I've found that "following the money" is a great start though :)

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