Does Bill have permission to slip you vague facts about your previous self or world?: Yes definitely.
Is there anything specific you would like him to focus on?: These are all good bets: SPACE THE FINAL FRONTIER, time travel, alien life (Time Lords, Daleks, Cybermen, Ood, etc.), sonic screwdriver, the TARDIS, the names of The Doctor's companions. This should help.
Can Bill mention any random details of your world to someone else? : (AKA do you care if he describes a piece of furniture in your world in someone else's thread?) That's fine. If someone wishes they could go back in time or something the TARDIS is a great thing to joke about.
Is there anything you absolutely do NOT want him to know: The fate of The Doctor's current companions back home. Amy Pond and Rory Williams. Anything from the 50th Doctor Who Anniversary special.
Permissions for The Doctor
Is there anything specific you would like him to focus on?: These are all good bets: SPACE THE FINAL FRONTIER, time travel, alien life (Time Lords, Daleks, Cybermen, Ood, etc.), sonic screwdriver, the TARDIS, the names of The Doctor's companions. This should help.
Can Bill mention any random details of your world to someone else? : (AKA do you care if he describes a piece of furniture in your world in someone else's thread?) That's fine. If someone wishes they could go back in time or something the TARDIS is a great thing to joke about.
Is there anything you absolutely do NOT want him to know: The fate of The Doctor's current companions back home. Amy Pond and Rory Williams. Anything from the 50th Doctor Who Anniversary special.