Privacy and social media are mutually exclusive. The ones you have linked are no exception. DD requires a phone number so I didn’t get any further. Minutiae has you taking photos and sending them to a centralized service. That’s not private. I don’t understand why you’d say that no is concerned about privacy with the implication that’s a bad thing then immediately recommend something as bad.
OSINT off stuff like this includes
Privacy and social media are mutually exclusive. Find me a security expert that disagrees and I might change my mind. Right now you’re a random person on the internet, I’m a random person on the internet, and OSINT is real.