* might be an idea to have a feedback link (why I'm posting this here)
* scrolling becomes tedious very quickly. Needs a better overview mechanism. Eg only show the first N lines of a story unless I'm interested.
* Without some notion of how you're going to define relevance, I quickly became way of disliking something.
* You could have a way to like/dislike the author, as well as the post. Ie a way to say "I always/never want to read stuff written by this person".
Much as I don't want Google to shutdown Reader (though I'm also relying on the http://www.reederapp.com author sorting out another back-end), I would suggest that the number of people signing the petition is going to be <= the number of people currently using Reader.
And Google have decided that number's not high enough for them to keep it around.
I wouldn’t say it’s a terrible visualization, although in general I do believe conditional 2D plots are the best way to show trends in higher dimensions. For example, here are some conditional plots for similar data (Kaggle Titanic competition) that I’ve found insightful.