Pros of kingdom tax:
- You can raise tax in your kingdoms to discourage players from staying there, if that makes you uncomfortable.
Cons of kingdom tax:
- If new players start at a location surrounded by 99% tax kingdoms (without full treasury), it makes the first couple levels harder or forces them to run around until they find a low tax kingdom.
Most kingdoms in surface aren't being embezzled so they are at full trs and thus tax takes no effect, so this isn't an urgently needed change; however, the potential trouble it could cause to new players probably isn't worth the one benefit.