A bigger problem is that no doubt some of the email addresses used by those accounts are no longer working, so lenders may not get Prosper notifications of the settlement, that money is there, etc. So the agreement will need to require Prosper to take some additional steps to contact lenders for whom email notification appears not to be working. Certainly snail mail notice is perfectly reasonable to require. But I don't think it would be reasonable to require Prosper to go to the ends of the Earth to try to find missing lenders. For them, I think that the settlement money (like any other money left at an old financial institution too long) should eventually escheat to the State.
The only thing beyond "
snail mail" and
email may be calling last known
phone numbers of those who don't respond and some sort of press announcement. When I volunteered for the Foundation at the local community college, we tried to collect as much contact information as possible because often when people move one of the contact methods might still get through.
At the local community college we had roughly 30% street address changes a year for students, a smaller percentage for the Foundation contributors, maybe around 15%. Unfortunately, I don't have info on change of phone numbers. When I left, we were giving students a lifetime email address, but a perusal of the web indicates that a third of the email addresses change each year.
But I agree that it isn't reasonable to require more effort on tracking down members of the class than emailing, mailing, and possibly telephoning.