I disagree that nsr is a reserve. It is a place to store value, but there are no keys or controls to generate risk. If we had a completely frictionless burn gateway, it would allow us to leverage nsr without using reserves.
Still, I don’t think even that would allow us to keep a completely reserve-less peg. I think we will always need at least T1, which is still a reserve even if we decentralize it to a huge degree.