said by Kearnstd:
This is bad, Very bad. Because it removes the control from the customer and places it with the ISP. Also when ISPs start blocking it takes things down a potentially dark path.
It's dangerous, because it leads to a censorship. It must be prevented (stopped) before it will be developed into a tool to control of what information could be accessed by public.--
Keep it simple, it'll become complex by itself...