Jorb, I think the idea of having more specific skills like mining and fishing are great ideas. In my short time playing this game so far I thought the exact same thing. For example, I loved to fish and we had designated fishermen for our village.. How cool would it be if we could enhance our fishing abilities to become specialized in what we do?
This could be applied to any aspect of the game, making the game much more appealing to people who want to do more specific tasks, or acquire skills not already presented in the current repertoire. In addition, it would add so many more "hours" of gameplay, if you will. So many more options would become available to players who want to go down a completely different path.
Hi-Five for being like-minded?
Edit: I think it would help make really vague skills much more understandable, especially for new players. If you would like to be good at this... Then try to raise up your blank. Or if you want to be good at this, a good combination of blank, blank and blank would benefit you. That concept except with a wide variety of specific skills.