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.
Anonymity is as security, multiple lines of defence are needed. Consider the host and all of it's data as Ring 0. If Ring 0 can be breached, you loose. I don't see the 'Red Flag' with Tor, when configured and used properly Tor obfuscates traffic to resemble Skype Communication and to get passed corporate firewalls etc... Tor is built to bypass most censorship so if Tor traffic would be a Red Flag it would really suck in being a tool to bypass censorship.
Always assess the capabilities of those that want to reveal your identity when your design a secure and anonymous architecture. Ask or hire an expert if you don't know what to do or if stakes are high.
Please be careful when suggesting a solution. Anonymity and encryption must not be taken lightly. Peoples life and freedom may depend on it.
EDIT yeah I mean you should only trust no trust systems. note pgp is the only thing here that is open source and truly verifiable to any security claims. thus it's the only thing you can trust by not trusting.