Phil, the point is who gives a flying f in production about anagrams. Noone has to deliver a meaningful abstraction in < an hour (or 15 minutes as a "simple" example of "puzzle" testing), and interviewing for that is truly ridiculous.
You and others might find it meaningful but after two decades of development I really have to question those who do.
You and others might find it meaningful but after two decades of development I really have to question those who do.