Like garage sales and other examples it would cost more to enforce than it brings in.
This never stopped tax authorities to try and collect what they think is due
However I think that if tax authorities are not entitled to follow every single internet transaction they won't have any effective tool to introduce and collect fees on internet transactions in general. But this is highly unlikely.
I think that BTCs themselves should not be taxed - they are only a tool. But if you make a profit of them, may be a small tax on the profit is not that bad. In my some countries this would be a flat 10% tax - not that bad.
I hope we all are born on earth, facts = there are law's ( what happened before laws? - conquering. )
Bitcoin early adopters know it's not about the price nor either the quantity rather
conquering the economical world.How can this be achieved? Not funding gov's. We indeed need to help people and go even further then moon, the world needs us all however central authorities even if by democracy have proven to be what they are - central authorities. The vote you cast every 4 years or so is kind of useless when it comes to this no matter decisions taken.