Why don't they tax me 10% for transfering my own gold to my own alts then? Wouldn't it help economy? Also they could deliver a free groin-kick so I'm encouraged even more .
The problem is determining which gold is yours, technically once you've paid it into the clan bank it's the clans money not yours. Going between your alts is the same gold, which has come from your cd-key and couldn't have come from anywhere else.
One thing I always found annoying is that you can't bid on a banner as a clan (using the clan bank). You have to withdraw the money to your personal character, paying the fee, to then bid on a banner which is effectively just taking 150-200k out of the
system. Any money you take out over the cost you either have to keep or put back in the bank to pay the fee on once again.