I just experienced this like the News results. This was expected, really.
Seems it gives you a shortcut next to your subscribed link to Manage your subscriptions putting more focus on community content. Convenient.
"It’s a service ... provided you are _described_ to that box."
Is this a typo or am I not understanding it correctly?
(Ooops, thanks Stephen, fixed!)
One of my subscribed links is to Digg, and it has been very helpful. I wonder why more companies, especially news sites, don't take advantage of the SEO opportunity of subscribed links.