Comment by ragall

> You don't know what will be best for most users until you try something.

That's because you don't understand your users. If you did, you wouldn't need to spy on them.

> you rarely find the global maximum on the first try

One never finds the "global maximum" with telemetry, at best a local sort-of maximum. To find what's best, you need understanding, which you never get from telemetry. Telemetry tells you what was done, not why or what was in the people's mind when it was done.