Change it because you don't understand it?
I'm sorry but you guys need to learn what's being talked about before just saying yes or no. It doesn't help. It's like that guy who just answers a b c d on a test to get a diagonal line. It's non-beneficial
The system is you pay 4 diamonds. Every sign excluding the sign that says the shop is yours you are charged 1 iron ingot for.
Trade signs? yes.
Private signs? yes.
all signs but the one i mention? yes.
That's the system.
I say that zerg should charge 3-5 iron per sign plus the inital 4 diamond start. The old system was heavily abused, the people on 1.7 would just leave there stuff in there like storage, I know I did. It was an easy 4 diamonds a week, i get 5 times that in an hour of mining. If it was my choice i would go to the extreme and charge an iron block per trade sign.
also, because i like being that guy... "but doesn't this take away from the survival experience?" :3