What can you do about it besides being concerned about it?
Distribute the coin to non-investors.
Btw, has anyone paid close enough attention to the selfish-mining paper to observe that as the attackers hashrate approaches 50% of the network, his portion of the blocks won goes to 100%.
Bitcoin often has a single pool with 50% of the network hashrate.
There is a fundamental problem here. All the anonymity tech in the world is sort of useless against the state under this current situation. We need to fundamentally rethink the longest chain rule as it is currently formulated.
Some ideas were presented by ethereum.