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That is either because they were too infatuated with their own voices - or they believed in the profitability of up-voting their own comments since they ran out of their own posts to self-up-vote.

I do believe that as services such as randowhale see their voting power decline to critical levels due to saturation, we will see the rise of randowhale satellites (with their own voting power pools and a LOT of delegated Steem Power.

And that seems to be one way to game the system... as diminishing voting power is one of the only mechanisms by which the pool is not "raped", correct?