From a post I made in another thread on another site:
I think that this would be awesome...it would increase the community size many times over. It would first increase the number of people playing mods, then it will increase the number of actual modders because some of them might never have played a mod before (being exclusive console gamers, and I know several myself) and they might like to make some mods of their own.
I think it would really change the community big time, and in a good way. I really hope Bethesda manages to pull it off. It is a wonderful Idea IMO