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.
I think aslong as the stealth is up too scratch you should never really be found out. Smell is the giveaway unfortunately for me. Just don't do what I did and go in for it as it was just a royal mail trap→