I can't edit anymore, here's one more point I forgot:

5.
Witnesses should significantly increase the account creation fee. This way new accounts would start out with more Steem Power, meaning their upvotes would be worth more. Currently, a new account with 3 Steem Power has an upvote value of $0.000157 at full vote power. By increasing the account creation fee to 20 steem, this value would increase to about $0.001. Setting the account creation fee to 200 steem would set the upvote value of new accounts to $0.01.