BAN GOLD TRADE - Alternate Player Tradeable Currency - possibilities?

Time to dig this one up again:

TLDR: This is basically how Diablo 3 worked, but expanded to guild members. It is sort of an in-between solution, where the number of possible trading partners is only limited by the guild member limit (which is 150 and can be increased). Bots cant do anything in this system when it comes to items. As for gold, I am in favour of reserving it for NPC trade only.

The reason why I think this is overall a win to Diablo 4 is that the guild members are working together for loot, like in World of Warcraft. Guilds are in need of purpose and here I would suggest to add a guild auction house or basar.