I voted 'other' because I don't really see a solution in the other choices. Then again, I not really high-tech.
The other could be to:
Place your scam find coins as a bounty to find the ones who scammed the rest....
Is it doable?
NO.
But you can start from the development team, who apparently didn't think it was a biggy having 5-6 members with 50-100 wallets each
Yeah it only became a problem when others realized that the team was in it and didn't really give a shit...