<p><pre><code>  I think ad networks are the ones who
  should be taking the lead here
</code></pre>
I don&#x27;t understand why <i>one</i> ad network doesn&#x27;t take this seriously and have strict rules and enforcement against &quot;bad&#x2F;heavy ads&quot;, and then use that fact to differentiate itself from competitors.  The resulting conversion of sites to their network (perhaps with a certification of compliance badge that sites can display) would provide that economic incentive... and perhaps steer the broader market in that direction over time.