That's what's doing it: you'll effectively get to Youtube without a cookie and be harassed.
It's a strange thing. It's so annoying that I've essentially given up Youtube. I don't care enough about the videos that I want to Login and whitelist (and have a profile recorded) the site, and this makes the experience bad. Ergo YT is fading from my life. Can't say that I miss it all that much after a few days, it has been a habit more so than something I actively enjoy.