Not sure about this, while there's the corner case of a 65+ Rep account being compromised, flag attacks are far more common on the Steem network. I believe there should be some protection for high Rep authors against bad actors. Imagine if you (or any high Rep author) make a comment, and some people (not even a whale) downvotes it baselessly - I wouldn't want it to be hidden.
Of course, the real issue here is that the Reputation system is dysfunctional and needs a complete overhaul. I'm sure that's in the pipeline somewhere for Hivemind's future releases, but probably a long time away. I have also suggested a decentralized judiciary system several times before. Clearly Dan seems to have learned from his mistakes with Steem and working on implementing one in EOS.
RE: Pull Request Submitted - Remove reputation protection from downvoted post hiding