When I signed up for this board, I used a special email address (with a +code in gmail) so that I can check where my spam is coming from. I haven't given this +code to any other website, and now (after 5 years from signing up) I have started receiving spam on the +code. This leads me to the conclusion that acne.org has sold my email address to spam companies. So, I'd advise any new users to use a fake/temporary email when signing up for acne.org, or avoiding the site all together as they are possibly a malicious group trying to make money from your details. Unless I get an explanation proving me wrong, I will spread the word about acne.org.
From the Terms of service:
We do not sell, trade, or otherwise transfer to outside parties your personally identifiable information unless we provide you with advance notice, except as described below. The term "outside parties" does not include Daniel Kern, Inc. It also does not include website hosting partners and other parties who assist us in operating our website, conducting our business, or servicing you, so long as those parties agree to keep this information confidential. We may also release your information when we believe release is appropriate to comply with the law, enforce our site policies, or protect ours or others' rights, property, or safety.
However, non-personally identifiable visitor information may be provided to other parties for marketing, advertising, or other uses.