Gator/Claria did this 10 years ago. Replacing existing ads is a big no, and is quite different than popping up ads over someone's existing site. Based on what

Gator/Claria did this 10 years ago. Replacing existing ads is a big no, and is quite different than popping up ads over someone's existing site. Based on what happened with them, pretty much any one who owns a website that shows display revenue can be a plaintiff again Megabox.