Ask HN: Anybody know why news.discovery.com reroutes to rebelmouse today?

I generally used http://news.discovery.com as a relatively innocuous non-https link to trigger a connection prompt for public WiFi. Today, however, that link reroutes to the "RebelMouse vs. WordPress VIP" spiel page at rebelmouse. http://www.discovery.com still stays at Discovery as expected (www as opposed to news). At first, I thought this (Starbucks) WiFi was co-opted (or I was intercepted by a surveillance router, like a Stingray), but I get the same result on LTE/WCDMA mobile. This behavior never happened before today or late yesterday.