That is an interesting idea.
I don't even think it would take hard fork.

I like the idea of "powering down" because, it alerts you that the thing has triggered, in case you just spent the last year in the Congo, or under a rock, and forgot, so you can correct it without losing everything.

The addition of named accounts solves a lot of problems, except anonymity.

Compared to HIVE, bitcoin is really in the stone age. And i am thinking that bitcoin will stay in the stone age. When you have something that is basically the savings account of the world, you want it slow and hard to work with. Lightning or Litecoin will handle the real transactions.