engagement

The law requires the option; a Dutch court required that the choice stick. Build a non-profiled feed people would actually use, explain ranking in plain words and size the engagement cost without inventing an uptake rate.

AI features are unusually good at producing engagement that is actually friction. The question tests whether you can tell the two apart in the data.

Messages sent and time spent reward an assistant that wastes users' time. Choose a metric tied to tasks users come back to finish, and pair it with quality and cost.

A follow-up can mean the answer led somewhere useful or that it failed. Split refinements from extensions, make successful sessions the primary metric, and keep clicks and abandonment as guardrails.