It's an individual decision of each organization choosing to accept
and
further pass along the route.
Like it or not, there is not "THE INTERNET" there is a set of independent networks operating under a commonly agreed framework of protocols. Each network operator is free to accept, deny, or otherwise handle any traffic they wish on any basis they choose.
This is the greatest strength of the internet. It is also it's most exploitable weakness in some ways. However, changing it would fundamentally destroy much of it's usefulness and resilience as a tool for the democratization of communication. As such, I must oppose any such move to apply greater central authority.
Owen
Of course, and I absolutely agree with that so long as the individual operators have the information they need to make those individual decisions. And that is the goal. Having information as to which resource have no valid points of contact and what other resources are associated with that invalid POC might be useful to some when some traffic crosses their net or reaches their other resources that causes problems.