The objective would be to only require/show the cookie consent banner to visitors in countries where it is legally required, rather than making everyone click an extra popup.
I'm afraid the extra popup in countries where it's not required might increase visitor bounce, decrease ad revenue, and increase annoyance.
I used civic cookie control to do this with xf 1.5, but it meant another query to their server across the pond, plus it is now an extra cost, and it would be nice to use the xenForo built-in cookie consent mechanism. But I don't like the idea of requiring most of my visitors who are not required to click a popup under GDPR to have yet another popup banner...