1. The DPR key was passed off to me. You make a good point though that the original DPR could pose as the current, so when that key is used, you are in a sense trusting the present and past DPRs. I was actually just thinking of updating the key. 2. It will hopefully help people learn about SR, Tor and Bitcoin. It's really up to them how deep down the security rabbit hole they want to go, but I think things are secure enough that it won't be a big issue.