"Removing" STEEM Power is the easiest thing to do. It's just a matter of rewording it, as quite a few people remarked. We just call it 'staked STEEM'.

Unless some major set backs would come up from removing SBD, I'm in favor. The problem I can think of is what do you do with SBD on exchanges? People would need to transfer that to Steem wallets (if they have them) and exchanges would need to delist SBD. I doubt the conversion can take place at exchanges.

I'm not sure I understood exactly from your post if you said maturity of liquid STEEM only affects voting for reward pool or witnesses and STEEM.DAO as well. If it's just the first, I'm not ok with it, if they are both, that's something that can be a solution. Term for full maturity can be talked some more. I'm in favor of a longer term.

We also have two other things to think about: do short term holders of the liquid STEEM care about the long term future of the blockchain? Some do, I'm sure of that, but will they be the majority? Don't get me wrong, I believe STEEM needs a higher liquidity. It also needs protection from predators.

The second question: What do we do with interest? Keep it as is? Remove it? You said simpler, so I guess you are not in favor of progressive interest, based on holding time (maybe not necessarily locked in?).

Actually a third question: what do we do with the Savings account? Do we remove it? Do we revamp it to something truly useful?