Hopefully I can help answer your questions about Hordit/Byteswap. I'm the founder of both sites.
First of all, Byteswap has been replaced by Hordit. The services that make up the underlying "guts" of Byteswap will now be positioned as a platform capable of powering other sites. Hordit is just a new and improved interface and a new name to reflect a new marketing focus.
Hordit really isn't meant to be a "file backup" service. The original intention of the site was to be a way to create kind of a personal search engine or knowledge base. We want to target "information hoarders" if you will - that's how we got to "hordit.com". So for example, if I'm a web developer this might be where I keep track of CSS tips and tricks, information about SEO, etc. And maybe I use that as an individual or maybe I'm part of a work team and we share information via a private group.
And you can certainly store more than files on Hordit. In fact, you can store bookmarks, files, photos, text notes, contacts and more.
Hope that helps.