CES ads in general--I'm lookin' at you Corning and Ford!
I've always avoided using ad blockers on android when there were certain sites that I wished to support. However, that stupid stupid Gorilla Glass 3 ad managed to follow me everywhere during CES until I had had enough and went full cock-block on it. I mean ad-block.
It is one thing on one hand if an ad is persistent, it is a whole other thing on someone else's hand if an ad is pervasive, exactly the same, and makes me want to stop checking more than one website for my CES crack because it makes my already finicky mobile browser slower than shit on a Nexus 4. Seriously. Meta. Well, meta-web.