Yes, I actually addressed the curation group KE Ratio issue over a year ago (Link) but it's still going on. We need a way where the system to take care of this automatically.
I also think KE isn't the best metric. Users should be able to lease their way out of a bad KE and curation should not really count as value extraction. It make little sense to put a ton of money in Hive, curate to get some rewards while seeing the value of your investment going down. Compared to coming here with no investment, making posts based on what curation groups tend to upvote and cash all that out.
The fact remains that there is just way too much value extraction going on and it's hurting the ecosystem while no real solution is in sight.
Without a doubt, you are absolutely right.
Automation can be a solution, addressing the lack of awareness. This publication is already a path that needs to be reflected upon.
Look, the voting power of these Curatorship groups depends on the HP of those who delegate to them. The delegators thus indirectly become responsible for the extraction. They must be aware that, in this way, they are not contributing to the financial health of the ecosystem and are harming themselves. At least those who buy HIVE.