I have checked the site, really great project, but that using you private key part still scares me abit, point 3

How can I access my account using Steemit.com? Since steemit.com won't let you login with the account if it has the owner key associated with it you can do to access the funds of your account like this: 1. Get back to the paperwallet generator 2. Provide the account name and password to derive the keys 3. Pick the active private key (starting with 5) of your account 4. On Steemit.com, login with the username username/active and the private key from 3. as password 4. It should be possible to do the same thing with the posting key aswell, except that you won't have access to your funds, but can post, vote, and comment

But i can see it's possible to set up the voting, posting permissions and do for funds later or when need be, but one needs to tincker with it first.