Trusting something as private as my personal diary to 3rd party sounds like a scary idea from a privacy point of view. Imagine someone hacking this site, exposing your very private information.

I wish there was something like that end-to-end encrypted. You are already using E2E encryption for the communication channel (WhatsApp). I wish there was a hookup to store the same data without breaking down the chain of encryption. WhatApp should look into that. Something like ProtonDrive connected to WhatsApp and APIs.