Because you're the only person it's serving. This is one of the key advantages of decentralization. Now, perhaps the best feature for the geeks is that you get the source code for the desktop website in Radio. And there are lots of places you can customize, or if you want, do you own desktop website in Radio and teach us how this stuff really works. The other guys are years behind.
Radio is a developer's friend, geeks can have fun and please do.
Now business details. This release of Radio is free. When we come out with 7.0.1 we'll have a for-pay version. It will also be able to be a workgroup server. The Radio we're shipping now is limited to 5 simultaneous net connections.