I'd really like to see more info on member profiles. For example, when I go to the home page, I see a tag cloud at the bottom for the books on my shelves, which gives a good indication of my interests. It would be nice to see that on profile pages.
A couple of other things I'd like to see: the notes a member has written on recipes; and the number of recipes they've member-indexed. The latter because I think it would be a nice ego-boost for member indexers to show off the work they've done :)