I like that idea a lot more than the idea of some imaginary lore guild you pay your taxes to.
- Introduce a guild mechanic that needs (destroys) coin in order to operate (x coin/day to give every guild member +y% mining speed for example)
- Alter the tax feature so you pay the tax to your guild and not the capital guild.
- Make player guilds more awesome and appealing and get rid of that lore guild in one sweep