Yes, Horizon, their brand new default viewing style. Does not work with the second most common browser in the world. The one with 15 percent market share. They have time to expedite people stalking their users, and plenty of time to be rude and dismissive of customers, but no time to get their site working outside of people using IE.
Edit: apparently it was something that was put in to fuck up people who were using adblockers. The fact that I don't have an ad-supported account apparently doesn't factor in. Sheesh. I had to whitelist the damn things to make anything else work.