As a lurker without enough rep to vote (or comment, I have a dear 11 points), I feel obligated to respond to your inquiry. I have been using the 'favorites' feature to store questions that I find interesting. Specifically, if I think a question is basic to a topic that I am interested in then I will bookmark it in order to gather unique references in that topic. I also like to bookmark soft questions that are obviously related to my academic trajectory, as well. (trajectory: First year grad student - aiming for academia.)
And what am I doing reading meta, anyway? I propose the analogy to the little kid sitting on the stairs listening to the adults discuss politics late into the evening... This is the kid who will question his Social Studies textbook when he gets to high school. (It's an attempt to gather that elusive thing called perspective. Caveat: Not everything that happens here is interesting, so I frequently just go back upstairs and play in my room.)
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