Bogons filtering

Hello, With IPv4 being almost exhausted[1] , I am curious to know how many net admins have the Bogon filtering ACLs still hanging around ? Google even gave me this expired Internet Draft [2] that seems to have been intended as a BCP. Regards, -Jay. [1] https://www.arin.net/resources/request/ipv4_countdown.html [2] https://tools.ietf.org/id/draft-vegoda-no-more-unallocated-slash8s-01.txt -- "Subvert the paradigm." - C.K. Prahlad