The only action plan is to keep informing people about changing their keys and recovery accounts and not clicking on any dubious links offering some prizes, services or token airdrops. Which we have been doing.

Hive ecosystem is not a charity or "free money" giveaway. It does not owe money to anyone and does not owe compensation.

The rewards from upvotes are courtesy of curators. They don't owe anyone a guaranteed reward or salary.

Your account being hacked is not a flaw of the Hive ecosystem. It was hacked due to human error - not changing a recovery account and giving away an owner key by logging in to scam websites, possibly some scam service offered on scam websites such as Steemit.