You must have really good comprehension and memorizing skill and quick backlog generation to let AI generate as much, since you claim that's not vibe-coding

> How many lines of (effective) code do you write, and how has that changed with AI?

I don't measure my productivity in loc. I also don't use ai to generate code. To me a productive day at work consists of letting my brain digest a given problem over a coffee or two, then write the necessary code in one go over a couple of hours.

I think this whole thing is a silly notion. Since when is loc/day an indication of anything?