Roselvr
Ask me how to get your loved one in NamUs
I think even if the public isn't notified, we will be able to put the pieces together if both of their profiles are taken offline in the same timeframe.
I certainly hope they would inform the public, as many people have invested many hours into identifying Grateful Doe. But I understand if they want to keep it private as well.
You are correct. Once the profiles go offline, it's out there.