> Today Varnish is used by all sorts, from FaceBook, Wikia and SlashDot to obscure sites you have surely never heard about, many of which serve mostly pink bits, lots of pink bits.
Adult content & companies have always been quick to utilize new technologies. JPEG's, first online payments, massive video services, etc. Its presence is even felt in places you might not expect, like reddit and imgur. I remember reading somewhere at one point 50% of reddit's traffic was adult in nature.
It took netflix until 2015 to beat out porn & piracy as total bandwidth consumer on the public internet[1].
Adult content.