Right, they guard the sanctity of your content fiercely. And make enormous bags of money off of your contact list, frequency and timing of contacts, awake timing, location, etc etc.

And even if you're in a country (only really Germany AFAIK) where the worst use of metadata for advertising is legally tricky... WhatsApp is the very definition of the fox guarding the henhouse. Do you really trust one of the largest data harvesters andy advertising marketplaces in the world to guard your data? Their business model literally depends on violating that trust. Do you honestly think that's a safe long term bet?