Kudos should be given to google here as they have really ender alot but i know they still got big flaws. As for been illegal, i dont know what to say but i will take a proper look at the link you shared again.
But i know that even though they night around legal, they are still some illegal act they are doing. @dan
Seems reading comprehension is in short supply around here. Multiple people think I accused google of doing something illegal, when I only asked a question whose answer is no.
If the answer was "yes" then Chuck E. Cheese tokens and skeeball tickets are a currency that must be regulated too. How could the IRS so blindly overlook such a potentially huge windfall for the Feds by failing to tax all those six year old's birthday party winnings (read "earnings") here...???
Gubmint is dumb.