I like, especialy the instant power down with burn. That would make things attractive. But to protect users I would think best the instant to not be so instant... and kind of take a few hours and be exponential with a complex process to be sure the owner is really powering down.
I would like accounts to be able to set either one (4 week) or the usual 13 weeks. This would allow accouts to suit different purpouses.
@therealwolf was talking about higher rewards set to longer stakes, which I think is an awesome addition to this concept.
I also like that idea. Alighed with longer rewards I would also think nice if locked stakes exist. To allow for better deals and rewards along with programed safety.
Maybe instant power down could involve a burn and active authentication by some other multisig account you specify.
I don't want any of my STEEM burnt up thank you!!!!
Thats a good example.
I like your suggestion @forykw