For example, there are quite a number of ghost accounts using trading bots on hive engine. Regards.

one interesting thing about the @mottler account, is that it had its funds stolen by the Steem witnesses.

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So, they know who it is. It's probably someone's alt.

No, they didn't know - it was "collateral damage" - they just assumed large account, must be taken. It hasn't voted or transacted, it is a mined account. Could have been someone who died.

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