The Web-Friendly name home is special for communities. If a community has the Web-Friendly name home then it can be accessed through a URL by specifying just the path of the Community Folder, and not the complete URL. For example if you have a Community Folder named /foo and a community named Bar, which has a Web-Friendly name home then you can access the Bar community via the URL /foo/ instead of /foo/home. The advantage to naming a community home appears when you have multiple communities in the same folder. The home community becomes the primary community for that community folder, and is the default community when visitors enter the community folder URL. There can be only one home community in a given community folder.