I was looking at the OSM Inspector in my area and found that there was a LOT of coastline (and I mean A LOT) of coastline added by a user who hasn't accepted the new license. This link gives you just a small sample of what I am talking about, zoom out to see more. I sent the user a message and he replied expressing much dissatisfaction with the new license. We all know what that means: A large amount of coastline will be gone in two days, and there's no way it's going to be remapped in that short amount of time.
So what do I do to salvage that coastline? I see that there is this odbl=clean tag which basically prevents these kinds of ways from being deleted but I'm unsure about whether to use it. So any suggestions on what I should do about this?
(Edit: I notice that some county boundaries added by the same user have been marked with the odbl=clean tag, too.)