This is helpful to someone who's trying to obtain/maintain visibility into a count of stale/inactive users at an organization. This is a good Metric for QBRs or recurring site reviews. Also, this Metric could be used to build a user audit with the intention of an end customer confirming that all looks as expected.

Users[? DaysSinceLastLogin < && UserStatus == && DaysSinceLastLogin != && Email != ] | length(@)