nobody know how to measure software productivity + ai is supposed to mean productivity goes up = more ai means more productivity

As best as I can tell, that's the thinking. It's one number, it's very easy to find and manage, and there is a belief that it directly measures productivity.

I disagree that it does; seems to me the throughput of useful features is a better measure, but I'm not in the drivers seat on this one

Incremental revenue and cost-savings, at least for enterprises, is where it would show up. There’s also a present value consideration - if LLM’s make those dollars come into existence closer to the present, they are worth more.

The personal use case stuff is messy and subjective.