Important: If you expect an answer, include a way to contact you back! An email-address (preferably on Tor) works best. Other channels may take a while since my online times are limited. If I didn't catch you with Torchat, in a webchat or whatever in time, you should give me a place where I can leave a message for you.
You can also just send an email to one of the following addresses. Please encrypt to my PGP-key there if possible!