If you, after 20 years, can process all your chat history with a (locally run!) AI, you may find a lot of interesting things about yourself and your friends.
It is much more likely that someone else will process all my chat history at a border checkpoint or somewhere similar and find out a lot of interesting things about me and my friends.
> Don't keep it all on your phone and unencrypted.
I've had a 90-day message retention policy set in WhatsApp ever since the feature became available. Not because I doubt my ability to manage secure backups, but because I don't expect my contacts to act equally careful.
I wish Signal supported a 90-day retention period. Four weeks (Signal max) is often too short for my contacts, which leads people to disable it altogether.
I also find it frustrating that Signal only applies your message retention policy to the conversation when you initiate the conversation, not when others do. As a result, more of my conversations end up being ephemeral on WhatsApp than on Signal, which feels a bit ironic.
If you really care about it, you should probably pursue anonymity on the Internet, too. The worldwide data collection from websites is far more concerning and harder to deal with. I use Qubes-Whonix for that.
