Thanks @chad. I should have read what those meant instead of picking randomly.

@sgrimm In your large post, you have a link that says 'Add a Herald Rule'. This link appears to be intended as a template so you can replace the domain with your own domain.However, clicking it actually brings you to the working domain http://phabricator.xxx.com. The result is funny and unexpected, but likely not intended. Maybe it should be changed to phabricator.example.com to prevent people from being linked to porn :)