[WarOnPrivacy]

> The scale of these attacks is insane, many SERPs are effected, millions of visits funneled to spam and scams,

This is the means; what is the end? Is it to get visitors to click on a link in the PDF and visit that site?

[illyism]

Pretty much, if you rank #1 in a 1,000,000 volume keyword you get a lot of traffic