Do you think that it will be created a btc regulatory authority in the future or will the blockchain continue to be the only warranty?
How such regulatory authority will look like?
A bunch of clerks that will have to be paid for their work.Who is going to pay them?
All the bitcoin users?
If it comes to that, then yes, all of us, the Bitcoin users. What such a body would most likely try to do is levy Bitcoin transactions and make miners include the transaction tax into their fees, so that this supervising body would get some percentage from all Bitcoin transactions. How they could actually implement this and make miners pay I don't know, but this idea lies on the surface and comes to mind first.