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.

Can I block users from a specific country or region?

Geo-blocking is not an available feature on xChat. But do let us know so we can embed it for you.

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.