[try_the_bass]

But this is incorrect. Flock is just incidentally watching you. Assuming they're being honest about their retention policies (which I would definitely that take with a grain of salt, but I'm making the assumption to steelman here), if no one searches for you, you're forgotten from their system after 30 days.

Stalking is targeted. Passively observing and making that information easy to search for a limited period of time is not quite the same thing, and the distinction has important implications