The ground truth that I never click on Stargate on Netflix is completely at odds with the actual truth that I love Stargate and want more of it and things like it.

What the ground truth usage data is completely ignorant of is that Netflix's copy is a crappy blurry transfer, and so I got dvds instead.

It goes the other way as well. Usage data isn't equivalent to asking users either. A solid percentage of bad decisions in tech can be traced to someone, somewhere forgetting that distinction and trusting usage data that says it's it's okay to remove <very important feature> because it's infrequently used.

> Asking users isn't a substitute for usage data.

Sure.

> Usage data is the ground truth.

Absolutely not. That's how you get "we buried this feature and nobody used it, so clearly nobody wants it".

> Usage data is the ground truth.

For what, precisely? As far as I know, you can use it to know "how much is X used" but not more than that, and it's not a "ground truth" for anything besides that.

Then pay for the data if you need it so bad.