|This is a proposed definition to clarify matters.|
An editor is anyone who edits pages of Wikipedia as opposed to being a reader who simply reads the articles. An editor may be anonymous, in which case an IP address is used in page histories, or can log on as a User with a unique user name. Believe it or not, users refer to themselves as Wikipedians.
There are exactly ୨୫,୭୬୧ users of which ୫୬ have been active in the past 30 days.