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Certainly can be done. Filtering newly created accounts, define new? 1 day/1 week?

Thank you very much for doing this, Almost 50% of the newly created accounts are zombies, they never login ,never vote, never post, but 1 week will be better, because some people will lose interest within one week.

I'll have a report on this come out tomorrow :)

Check out https://steemd.com/distribution -- "active users" is defined as votes or comments in a given period. Registrations themselves do not count