please try to see it in the context of the game rather than a personal one.
the aim of the suggestion IS to hurt you, to slow your progression, to make you furiously cry, to make you think on how to best manage that new diminishing returns mechanic the game challenges you with, for example on how to best run lower tier map types if you're out of stock in higher tier ones in great variety.
i expected suggestions on how to improve the idea and make it more challenging.
but if you people keep argumenting against (and attacking (go to north korea...) suggestions which make the game more challenging and pull all that on a personal level you don't have to wonder about people stop making those suggestions. or any suggestions at all.
I know my post was based on my personal opinion, but if I were to look at it objectively, I will still arrive to the same conclusion that the suggestion being a bad idea.
This suggestion will not stop those that know how to reach level 100 quickly. It made slow them down a bit for them, but with their extreme luck, perseverance, or whatever assist them through the process to piggy back them to 100, it will happen. For those do not have all three or at least 2 out of the three factors, endgame content will be hell. At that point is it worth mapping? You can say its good for the game, but another would think its bad for the game.
Honestly though, what is the point of this type of suggestion. What will the game benefit out of this? What will the player benefit out of this? There needs to be "some" balance between the game and the players.