Board Thread:News and Announcements/@comment-34601114-20181016023140/@comment-34601114-20181016203820

PurpleTheUnicorn wrote: But what if the page hasn’t been edited in 3 months?

Then you move the page. Any page that hasn't been edited in over two months by the author(I.e. if a vandal attacked the page and reverted it doesn't count) then it's considered inactive and is part of the purge.