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Read all about it at the above link. There's way too much to process here. This is going to be wild.
They have complete control. They can just ban the account who owns the coins, or block them from using it because they are the some platform that it's used on. Even if a user gets banned and gives their coins to someone else, it's trivial to track the blockchain transaction to see which account it goes into and ban that one.
They have just as much control as the old coins, except now it burns 1000x the amount of trees and is crypto scam shit.
Much of this thread seems to be a case of blind leading the blind for the sake of hate.
The crypto community has more than its share of scams, memes, hype-driven projects, and speculations which give it a bad and unprofessional perception, but that's just the surface.
Ethereum/cryptocurrency has the power for great change and is actually a pretty complex topic under the hood, the details of which most people will never need to understand, just like the Internet.
It's trivial to see if they give you dumb reddit coins, that the wallet it's going into is yours. If they ban you and see that wallet to connect to your account, clearly it's the same person.