The Forgettable Mister Ruthsarian

More Fuel

Malware-installing "ads" appearing on major websites.

Yet more fuel for the case of not only using ad blocking software like Adblock Plus, but also for the case of installing noscript and leaving scripting and embedded objects disabled by default.

At which point my argument about relying on Flash/JavaScript being a bad idea for your website becomes even more important. If the first-time visitor can't access your website because it hasn't earned their truest to allow execution of scripts or embedded objects how will it ever earn their trust? Furthermore you lose that critical first impression.