IIRC the same problem creep up with the EVE Online site I visit. Farmers selling ISK for IRL money advertise their wares through adsense, and the sites that had these ads up could only block N number of ads a day/week/month.
I don't think you can manage completly the ads.
Also, quick side note on the recent database errors we are having. I'm used to seing a ratio of about 1:10 registered members to guests. Right now we have 35 registered members for 2358 guests online.
Is the site even capable of handling this load? I'm thinking this is the source of the db errors that keep coming up these days.
Also, I would like to know if the link in the original thread still points towards ASC's piggy bank or not.