What is the user registration flow?
New users need to register after entering valid details. They need to verify their email account using the verification link sent to their email ID, post which they will be able to log into the site successfully.
An unregistered user will still be able to browse around the site checking model profiles, the available content and view them, but will need an account to subscribe to channels or buy premium content.
Is there a Social Sign-up option?
No, due to the API restrictions laid out by social sites, such a sign-in or sign-up option is not something that can be integrated into any adult website.
How can users contact the site owner if they have an issue?
Users can use the contact form on the website to reach out to Site Admin.