User blog comment:Rappy 4187/Technical Update: March 10, 2015/@comment-1251315-20150312231408/@comment-452-20150312232338

Hey cool, I'm listed as one.

The inconsistency is weird, indicating that it's a per-wiki flag instead of a per-user flag.

edit: https://github.com/Wikia/app/search?utf8=%E2%9C%93&q=poweruser has some info. * Maintenance script for adding poweruser_frequent property * for users that have made more than 140 edits in the last 60 days.

const MIN_LIFETIME_EDITS = 2000; const MIN_FREQUENT_EDITS = 140;

edit: somewhat related, I've been de-personed on http://community.wikia.com/wiki/Special:ListUsers

Mystery solved: I am also a poweruser here: and since there is no "poweruser" in the listed rights, no-one who is ONLY a poweruser is listed when you select all. You have to deselect all in order to display users who are only powerusers.