This is an interesting change from what I thought it was going to be.

I have seen this kind of thing elsewhere, perhaps you have too, and thats why you suggested it.

The proposal still has opportunities for abuse,and I would ask if its really needed, and would plarium give up the current charge they impose for the system for moving resources between players that already exists?

I personally wouldnt be so keen to give up silver now, for something thats easier to acquire.

If you are short on something, change the town set up, or concentrate on yielding from tiles containing what you need.

There are other things you can do to increase production of specific resources.
 See clan store,hero equipment, hero skills tree, and oracle.