Thank you very much for reporting this. The website meanwhile seems down, but wayback machine does not show anything related to Cardano. Can you confirm that ADA holders was affected/targeted by this scam?
In fact there is an email-address for scam-reports: Reporting abuse or scam sites and social media accounts
Also the community-driven https://cardanowiki.info/wiki/Scam_alerts maintains a list of reported ad known Scams.