Some quick comments:
A) Whales may simply opt to post with a different handle and upvote with their whale only. Many whales are already split among a few accounts.
B/C) IMO, vote count shouldn't even be displayed as it can easily be gamed with sybils. I can give something hundreds of upvotes just with my mining accounts.
I agree with D/E, though, they are problems!
If vote count shouldn't be displayed why display Steem Dollar payout to the public?