SteemReports.com is a great site for checking people voting habits. I don't see why the whales don't analyse some of the curation of users and decide who brings the best value to the platform through their CURATION and not their own posts. And check periodically that they are still voting in ways that are good for the network.

If I were a whale I would seek users who don't vote for than 5% (of their weekly total) on any particular accounts including their own. Then I could take a VACATION knowing my capital values are growing because I invested in the right people!