Geo splitting is the lazy man's targeting

Hot take: splitting on country is the comfort food of this industry — everybody does it, almost nobody needs it as their primary signal, and it's the first thing that gets you caught in a sweep.
Geo is seductive because it's clean and explainable to a partner. But it's also the most surveilled axis there is; whole teams exist to detect exactly that pattern. Device and context splitting is messier to reason about and harder to QA, yet it maps far closer to actual user intent.
People pick geo because it's legible, not because it's right. Legible to you means legible to them.
Agree? Fight me in the comments.