Negotiate a better source of revenue
For the love of god, just talk to Stephane and convince him to 1. Remove the option to buy gralats and 2. Add different things that players will spend their iTunes/Facebook Credits/Google Play Cards on. I don't know what, maybe some extra content behind a paywall or something, but we would be better off with the ability to purchase in-game currency removed.
Negotiate a better source of revenue
It really pities me seeing people spending hours of their lives just to get a gun. Let's be real here, shelling/shrooming isn't enjoyable. They should be basing, sparring etc. This is why era can be a lesson for us to learn. It should all come from the heart. I would love to introduce a similar game in the future when everyone can enjoy without wasting TOO MUCH TIME earning. Well I can only do that if I'm rich lol, so I'm tryna study hard to make it possible. This game is just very atrocious because of it's avaricious owner. I'd admit that I'm guilty to be playing it and I can't force myself to quit permanently. My only way is to manage my time wisely.
I wouldn't blame fully on Stefan cause it might be his only source of income for all I know but at the same time I wouldn't go to such an extent of nerfing shelling and reducing the amount of trash spawn.