fyrstikken
great idea for the discussion!
I know for sure, that creates accounts for marking unwanted accounts
in Russian topic on bitkointolk one user reported that it has 900 accounts for all sorts of manipulation (upvoting, flaffing...) on steemit.
He also informed that he would pay for upvoting and flaffing users who agree to its terms and conditions.
sure he is not the only one.
this means that at least a few thousand such accounts on steemit.