I don't think it would be such a good idea. By buying a license you get access to S2 or S1 mode, which has the corresponding content enabled. Then we wouldn't be a difference between demo and licensed servers. One big bunch.
And please, you bigger noses, don't comment suggestions with 'it's hard to implement'. We're suggesting, what would be good, and even if you can't implement it easily it may be a good idea.