You could easily extend this to support email forwarding. e.g. danariely@inbound.shortwhale.com -> danariely@gmail.com Messages sent to the inbound email addr

You could easily extend this to support email forwarding. e.g. danariely@inbound.shortwhale.com -> danariely@gmail.com Messages sent to the inbound email address receive automatic replies with a link to the site, or for bonus points, an HTML form (for email clients that aren't ancient and terrible).