Just received the same message - it seems doubtful this is a sudden surge in interest Chess.com usage.
I agree. I don't buy that there has been a surge of (legitimate) chess interest in the last month that has caused this. I'd guess that there has been a surge of fake/bot accounts, possibly as part of a DDoS attack. Either that, or the development team messed up something major while trying to integrate features/data from the Play Magnus merger.
i deleted my alt account centuries ago. i imagine that deleting them would definitely help get the servers up and running again