You can buy 10K human votes with unique IP. Only way to detect them if the votes are casted from same region or country with short period of time.
They have a very small community and nowhere in earth, they can manage 22K human votes. And, you can't use another vote farm to beat a vote farm. A Steem whale easily could have bought 10K votes.
If Netcoins review is fair (which they promised and reduced votes for VERGE and PACCoin earlier), STEEM will be winner.