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.
Hopefully the warp drive will give us a little bigger (pun not intended) perspective than you guys have. What hope do we have for getting out of the solar system when you think there is a difference between humans on different sides of our little planet?