one of the so many reasons, players left this game is also the stupid mechanics of storage , with the super expensive research, the storage at main is about 2 billions, vs 13b for example in this picture. so how do players obtain resources if the town cannot produce so much or to save? yeah , which lead to consequences of looting active players, and weak / new players getting bored after losing, of course - leave.
okie back to this topic, spending lots of resources to upgrade the storage, only increase a 5% , so a 2b storage will be 100m… which i think most of the smart players will skip the one of the many stupid upgrades…