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.
it made a radiator feel like a sponge and very comfy for hours for me as I leand against it in my mates, I was then crippled for a week, aah the memories! Lol→