But who's going to use it?
The point of these "standards" such as they are - or even the CPP Specification - is to say "We wrote this page in a way devoid of annoying bloat"
...but the site owners are the ones including all that crud in the first place. They chose to do it - no one made them - and presumably they chose to do it because they have numbers that say that forcing flash ads and "Please sign up to our newsletter" popups actually _does_ increase site revenue.
To make them change, surely the first step is going to have to be to convince them otherwise, or else to the suits who sign off on the final site design, this is going to look like a deliberate attack on their revenue streams, and why on earth would they agree to that?