rob mcewen oatinvaluementcom jeff chan wrote think blacklists free set spend thousands hours per year undergo constant threats ddos worse listen complaints dare consider partially paid work yes need start asking huge graveyard promising dnsbls good start suddenly died literally dozens dnsbls died within past years reason simple altruism andor high one gets pats back free dnsbl eventually gets old certainly doesnt pay bills running highquality dnsbl costly terms personal time resources involved risk harassment ddos attacks real protecting costly well time effort involved suck life right anyone someone saying timeeffortresourcesrisk always donated free offensive people like jeff chan personally verify fact donated thousands hours unbillable time helping spam filters better via efforts surbl elsewhere dnsbl operators like jeff others energizer bunny btw really isps need move rsync running local dns caching servers rob mcewen thu 07 aug 2008 053314 0500 time make multiuriblorg optional rather default