Second that. Lists were introduced as a response to G+ circles just as the subscribe function was added as a response to the follower model of Twitter. Everyone expected a response from Facebook and they delivered. Then the features were left languishing and were never updated/enhanced. I don't know what's the rationale behind this, lists are actually a wonderful way to catalogue your "friends" and most people would find them very useful, if they knew they're available. Facebook should really consider to make them a more prominent feature and simplify the whole adding process.