this ability of randomly doing snapshots that allows seizing accounts worries me a lot. If this ability is not removed somehow there is no future for the coin. I'm still trying to understand what allows them to do so? The fact that the coordinator is in place or is it more rooted in the design itself?
BTC is valued the way it is because it's truely decentralized. Other then banning exchanges there is nothing a government can do.
If you truly are trying to understand, why are you posting before even checking how things actually work? The topic has been discussed many times before, it is not kept secret, and you could have easily found answers to your questions before posting uninformed FUD.
Snapshots need to be approved by the network in order to be valid, they are first proposed and then enforced after consensus is reached, it is indeed decentralized. They work pretty much like hard forks for blockchain-based coins (regarding consensus).