If Zango pops a window when you click an ad, what's preventing other "content surfing enhancement" makers (read: spyware makers

) from popping another webmaster's TGP when you click on a link at a TGP? The surfer would think it's normal since this is SOP for TGP traffic exchanges.
Would the general myopia of this business model translate into a massive land grab NOT for webspace/keywords/niches but USERS directly?
The impact would not just be TGPs/MGPs but tons of other methods used to generate traffic (as long as a LINK and browser window is inevitably involved in the process).
Of course, this impacts mainstream as well (ie., MFA sites)
Discuss