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.
Try bitcoinGet, you earn bitcoin for doing Survey, is okay/ Need wallet first, download one, I tried Armoury, and it want load my bitcoin. So check out wallet, get a one rated. no Like sad me. a one that works.