Thanks for the notes. The demo site is a demo site, and unfortunately we cannot avoid such strange visitors who upload dirty content while testing Dolphin - but we are still trying to keep demozzz.com clean. At the moment, the demo site is set to free mode, but you can easily set up your website so registered members only would be able to browse your site pages.
As for a Unity login to view the Dolphin demo, I do not think it will be good for potential customers for us to demand Unity registration. see more We could lose a lot of unique visitors.