Yes we need to address malicious ads, but short and sweet, they are there to generate revenue of sorts for legitimate business. SO, teach the user to not click on the pretty ad the comes up, and why, poof, problem solved?
Maybe build a program that sends a signal to a special anti ad clicking mouse, every time you click, it shocks your poor little hand, until you stay away from those mean ol ads.
Heh, no, that will never work.
The idea to address the issue of malicious ads is not an easy one to address. I think this letter is a great starting point, and should hopefully open some thinking, but my point of the mouse example is that we have to address it not only at the redirects level, but the end user. If the "masses" of people out there would learn to not be afraid of technology, then we might make more progress.
These ads move on through fear, and fear is strong. It gives the original writer a virtual (or maybe physical) hardon, because they know they have to the power to control thousands.
I like my mouse idea.