I haven't checked all around the site but on http://www.postatic.com/admin/hello/tour this stood out:
`User your own domain name` should be `Use your own domain name`
`User your own domain name` should be `Use your own domain name`
Anyways great product! I wonder if there's a demo or something to check how this works.
You can check out our own Q&A site (eating our own dog-food). We use Postatic to run our own community.