"Read my lips: No new taxes." - George H. W. Bush, 1988
One of Warhammer Online's Guild features is the tax and tithe system. A tax is money taken off the top of whatever you do (i.e. sell and loot) and put into the guild bank. A tithe is a voluntary tax which you can set on yourself, which also goes into the guild bank.
I think they are fine, so long as your Guilds leadership actually uses them for the good of the guild. As for tithing, if the tax rate is low, and money is plentiful, I will likely set a tithe.
What are your feelings about Guild taxes?