From this week’s Signpost, worth reading:
https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/2015-05-20/In_fo…
this is a great illustration of why we need stateless, historically and globally
consistent measurements to report the growth of Wikimedia projects (and particularly why
the legacy definition of a “countable” article is ridiculously problematic):
https://meta.wikimedia.org/wiki/Research:Refining_the_definition_of_monthly…
https://meta.wikimedia.org/wiki/Research:Metrics_standardization
Dario