A system of trade capitals based on amount of residents would be amazing, especially for my nation which has barcelona and holy capital

I agree, /ah may be very hard to access if located far away for a new player, and I believe new players should be the ones that have the most use out of auction house due to them not being completely self sufficient for sure, and not being able to access it without walking thousands and thousands of blocks, then having to figure out shop plots, it can all be very frustrating.

If your nation is so large that you have to travel across oceans, sounds like you're in the wrong nation and you should join a better one or make your own.

Not going to incentivize mega nations to keep mega nationing.

this is a great idea