So they are not going to treat it like a currency for tax purposes.
So if you buy 1 bitcoin and 1 year later buy a car for 1 bitcoin you could be lugged with a massive tax bill relative to the value difference of the coin.
This could make it rather difficult to use Cryptos as a medium of exchange for buying and selling due to the obligation of tracking the tax implications of every transaction.
eg if you have your savings in bitcoin and do your weekly food shopping from your bitcoin account. You would have to track every expenditure and calculate the tax burden and then submit your yearly gain or loss to the Tax department.
This is not a very attractive prospect. Maybe they are setting us up for a new US coin or Aussie Coin ect.
My exact thoughts are that they want to prevent it being a legally acceptable medium of exchange. Classify it as a property and it's no longer possible to use it as a currency for exchange reasons simply due to the tax implications. Time will tell.
Personally I think most Cryptos will be killed off by the Governments once we have accepted the technology , we will be herded into Government coins sold as safe and employed by the banks as the only medium of exchange.