I have a friend that was inactive durring the migration, and so lost her account. We contacted support and got the reply that the account (Characters, ect) can't be reactivated due to Privacy-laws. (As far as I know, that is the personal information of someone linked to an account)
This lends me to believe there is a way to see from wich accounts the personal data can or can't be accessed. (BUT, I also know that most (easy) sollutions in IT aren't that easy or cheap at all!)
A purge would indeed be bad. There is simply too much that can go wrong with that. (Tough she is a good friend, I would hate to loose my account so she can play again on hers and leaving me to start over. :P or worse, loose my account to people who will never get back to lotro)
Server: Evernight
Kin: Shire Folk
Lvl100: Ward (Ssolarin), RK (Ssaphira), LM (Ssolariel), Beo (Shruikan), Cap (Nasuda)