Moxie claimed: > "The choice to make these notifications "blocking" would in some ways make things worse. That would leak information to the server about who ha

Moxie claimed: > "The choice to make these notifications "blocking" would in some ways make things worse. That would leak information to the server about who has enabled safety number change notifications and who hasn't, effectively telling the server who it could MITM transparently and who it couldn't; something that WhatsApp considered very carefully." Surely if WhatsApp cared about the server not being able to detect this, they could just get the client to "retransmit" an encrypted blank message in place of the original under these circumstances. Then the server wouldn't be able to tell who has enabled blocking mode and who hasn't.