A question
In the app, flag it from the question screen. On the web, send the link through the contact form.
An account or a scam
If someone is pretending to be 50heads, asking for your sign-in code or offering to "buy" accounts, don't reply. Tell us what you saw through the contact form. We never ask for your code by email, message or phone.
A security issue
Please tell us privately through the contact form before telling anyone else. Our vulnerability disclosure page explains how we handle reports and what is in scope.
Something else
Contact us. A person will reply, usually within one working day.