I only see like() as counting the methods available through the public contract to determine its percentage. Something you could do by hand with .can(). But there wouldn't be much point in putting it in if people won't use it. On the other hand, if people want it and it's not there, they'll reinvent it, poorly.
I'd use it for marshalling objects composed of many things to something that makes sense to someone else's idea of what they should be, eg an XML Schema. Pick what it's most alike to and marshall as that.
-- Robin Berjon
