While waiting for things to sync, perhaps you'd have the time to peruse an old post of mine which suggested that non-proof of brain generation of steem, for example vot bots, is counterfeit according to white paper criteria. A link to the post is included below for your reading pleasure

https://steemit.com/steem-network/@novacadian/where-is-the-trust-in-proof-of-brain-mining

One means to abate such counterfeiting was put forward in a more recent posting of mine, in the form of a proposed development of a decentralized anonynoys CAPCHA scheme. A link to the post is included below for your reading pleasure.

https://steemit.com/steem/@novacadian/a-decentralized-capcha-annonymous-proof-of-brain-verification

It would be of great interest, to me, to hear your position on voting bots.

Thanks!