He bought the community and a brand. To piss us off and leave would be silly, to make his stake in coins worthless would be silly. Either his coins are just the cost of taking over or he wants them to be worth something. Nobody knows how this tech will integrate but this is the future of this tech. If Justin creates a brand out of Tron, perceptions will change over night and Trons image in the public domain can shine big like Ethereum. Ethereum has only a brand, and a pretty unscalable chain.