I know that there is a lot of negative feedback around the Trading Posts becoming Linked. For me, in addition to the concerns that have been stated in other threads (ruining the economy etc), it rubs me the wrong way as it seems to break one of the core tenants of the games design. That being that traveling the world is important and necessary to succeed.
I think that there is a way to solve not only the economic concerns revolving around people just buying in the town with the lowest tax, and posting in the town with the lowest tax, but also the core gameplay theme of travel being difficult and the towns being disconnected from each other.
I would propose having the Trading Post being an upgradable portion of the city, like the crafting and refining stations. At Tier 1 (default) auctions posted in that city would only be visible /available in that town. As you level it up, the auctions posted there would be visible in ever growing places, until at Tier 5 - auctions posted their are visible in every city.
This would provide meaningful choices for towns to upgrade and grow outside of being competing crafting centers, and would allow players/companies/factions to decide which towns to grow in the way that they want - while still accomplishing the stated goal of boosting the economy and allowing players to purchase items in less populated zones.
I’d love to hear other people’s thoughts on this!