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I think it would be nice if the default, users page listed users that you are more likely to encounter as you use the site. That is, make it more likely to see users who are particularly active (or was most recently active) in the tags you use (much like the interesting tab works for questions on the home page). That way, if you wanted to find a person, you won't get bombarded by a list of people you probably don't have any interest in seeing when you start. Of course, this would only be done if the user is logged in.