> Maybe the general pattern of letting people send messages to someone who’s installed then uninstalled the app? Sorry to anyone who’s tried to contact me on Si

> Maybe the general pattern of letting people send messages to someone who’s installed then uninstalled the app? Sorry to anyone who’s tried to contact me on Signal or Snapchat over the past decade. At least for Signal and WhatsApp, the sender can see when the receiver's phone received the message (the single tick mark which means "received by the server" becomes a double tick mark), so the situation when the receiver's phone doesn't have the app anymore (or is turned off) is a bit better. But yeah, it would be best if these apps warned when trying to message someone whose phone hasn't contacted the messaging server in a while.