As per US law, bitcoins are not legal tender and thus you are breaking the law by accepting them.
Hahaha, and here I thought your response to me on the Havelock thread was a funny as someone could get! Legal tender is an obligation satisfaction concept in the US, it doesn't define the panoply of property you can accept in trade. You can accept anything you wish as satisfaction of an obligation in the US, so long as it is not expressly prohibited to do so (for instance, most countries would prohibit sex, cocaine, or untaxed alcohol as payment, all the fun stuff), and you can refuse anything you want if you haven't yet incurred the obligation (a store clerk doesn't have to take your $100 in pennies in exchange for those 10 bottles of cheap vodka you want, but if you already bought those bottles on credit with the store, they have to take the $100 in pennies as satisfaction of the debt). Is there a website somewhere that supplies people with crazy, childish concepts about the law or something? I don't know where you people get your interpretations.