This gave me an early morning laugh

Why on earth will a donator sell his account after he donated plenty of bitcoins to get that status?
Just doesn't make sense.
you do realize that most VIP accounts got that status because they donated when bitcoin was worth a lot less then it is today? Most donators only gave ~a hundred dollars worth of bitcoin when they donated.
I know, but still, these people are not likely the kind that are in such need of money that they will sell their account.
And if they would, it would cost you several thousands of dollars...
Most people that sell their account simply do not want to use their account anymore. Just because they had a lot of bitcoin several years ago doesn't mean that they still have any of it.