RE: Steemit Suggestions and Rationale. I hope that this will make people think their own thoughts.

Unweighted votes leads to a proliferation of bots. (you think it's bad now?). I just want to see the end of the amplification of the difference of influence.
I have been saying for some time that it could be quite beneficial to be able to sell SP at a discount as a loan collateral.
Instead of trying to stop witnesses from having a lot of steem (and if they are successful, they will, inevitably), how about make it so that witnesses can't vote on other witnesses. If you have a standing Witness declaration transaction (setting key and SBD interest and witness announcement url) then your votes on witnesses should not be counted. Also, witness votes should have a decaying effect the more you vote for, same as post votes.
You can't ban multiple accounts, even if you try. You also leave out positive uses like leaks, asset protection against a corrupt government, and that ol' chestnut, 'privacy'. Besides this, at present, you get less bang for your SP if you hold several accounts and vote rather than one big one, as a result of the vote scaling system in place (which is an argument in favour of n2> curves).
In fact, I have found that voting less but following a good curator has seen my curation yield move up to an average currently around 5SP per day. Excessive voting comes from people who don't understand that 1 big account is better than 50 with the same SP. As for greed, the new steem is up for grabs, and gets paid out to someone. The whole point of the forum is to try and make it the more noble who get the most.