I've been reading elsewhere recently about these download codecs stealing affiliate codes.
Basically, there's sites with unplayable videos telling you to download codec & once visitor has this codec, it will replace refcodes of links on other pages visitor visits..
For example.. Visitor A downloads codec from page you shown above..
next, Visitor A goes to someporntgp.com & links on someporntgp.com now contain refcodes belonging to affiliate who had codec installs on unsuspecting visitors
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