Pretty good ideas.
I curate content by going through the "new" section, each day. If I had more SP this would help get people more payouts. But I don't just upvote anything... hehe...
The Power Down is interesting. I Power Down and then Power Up with the STEEM I get. I read a post a week or two ago saying this increases the SP I get... So I do it. I don't cash out with the Steem.
I support the changes either way. It seems like a good way to incentivise people to certain behavior.
Take care. Peace.