So, I guess I am the only one here who actually likes the new apps? Its interesting to see what people are doing, and I have found interesting articles that I wouldn't have otherwise seen.
The talk about recommendation is missing the point, making this information available to your friends in this way is not recommendation. And people don't see it in that way; I certainly don't. Explicit sharing is still treated differently by facebook, and given more emphasis. Its clear that they realise things that aren't explicitly recommended are less valuable; thats why they now show you this aggregated view of articles read.
It seems a bit weird at first. I'll admit, I initially opted out of sharing, but I'm meaning to change it back now. The 'openness' philosophy of Facebook is often a bit daunting, and they make mistakes because of it, which is worrying, but it does have its upsides as well.