we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
Great idea. Better stay away from singularities (black holes) though. Small matter of your residual info on the event horizon sputtering away like radio static thanks to Hawking radiation.→