that's cool man, i'm still going to block the 99.9999% of attackers that don't own my isp. you are conflating "bad idea in extremely exotic scenario" with "coun

that's cool man, i'm still going to block the 99.9999% of attackers that don't own my isp. you are conflating "bad idea in extremely exotic scenario" with "counterproductive"; ever heard of defense in depth?