Here's another interesting dilema for the "state". The cost and effort required to prosecute these petty "theives" (as the state would have it), and stop such tax avoiding sales, will cost them even more in lost revenue. So now not only is the state not getting revenue from taxes, the state will have to expend huge amounts of revenue to get their tax. Maybe this is a win situation for us after all!
Of course, this hasn't stopped the war on drugs. The state doesn't even get revenue from illegal drugs (well except for some confiscation) and they still prosecute the war on drugs.
I often wonder if it is not about revenue at all, but about power and control. Perhaps this is about finding justification to attack one of the newest enemys to nanny state, the Internet!