The information of interest is going to be the network of contacts you talk to, not necessarily what you said. You can encrypt anything you want to with public key encryption and it will be nigh on unbreakable, but as soon as you start talking to your local militia they are going to add a keylogger to your keyboard or whatever. And your new best friend at the gym/range will really like wearing cargo shorts and have a crew cut. ISIS used to drop messages into the draft folder of a gmail account, and just share the password A recent comms app was a honeypot from the beginning, so none of these companies are putting your privacy ahead of their freedom to not be Hillary'd on a dark night. OPSEC is challenging to do consistently, just look at the Intels track record in foiling muslim plots, who will have put their life on the line at remaining undetected. I'd imagine it's fine for buying weed or whatever? security now relies on people being dull enough to not be worth the paperwork involved, or you not getting flagged by AI for mean tweets about vibrant urbanites