How to secure the Internet in three easy steps

Source address validation, or more generally anti-spoofing filters, do
not require providers maintain logs, perform content inspection or
install firewalls. But source address validation won't stop attacks,
viruses, child porn, terrorists, gambling, music sharing or any other
evil that exists in the world. So the proposal "1" gets extended to
include other stuff. It gives better ROI when more than SAV is included.

i can see how this could happen. however, i do not think that it is the
reason why SAV is not gettign deployed.