Quote Originally Posted by kexodusc
Lawyers.
The ISP's are afraid of being held accountable for allowing their customers, and implicitly assisting them, to break the law via distribution of copyrighted material.
To my knowledge, the ISP's haven't been the target of the RIAA's yet but maybe they will be in the future...then the ISP's would police this stuff much more rigorously, and probably unfairly.
Also some ISPs are having trouble handling the bandwidth load of P2P file share uploads and downloads.

It looks like a potentially more disruptive strategy. They really had to quit out of the old one. If they lost too many of these battles, they risk setting up a legal precidence that works against you going forward and beyond the internet.

I wonder what's going to happen when the first user sues their ISP (and RIAA?). How will the defendants be able to show that the user violated a law or terms of service? Will they even be required to?