The media world is changing rapidly. Sales of books and newspapers are in a long term steady decline. There's still money to be made for mega stars like J K Rowling, but the opportunities in traditional publishing for the middling novelist who produces a reasonably good read are drying up.
The people who designed Authonomy and most of the users there seem to still be fixed in the world of traditional hardcopy publishing. The net is creating new opportunities for writers. They look, feel and smell different from the old opportunities. Up until now there has not been much non-porn mainstream fiction available on the net. Gay fiction was a notable exception. My theory about that is that there are a lot of people interested in reading gay fiction who would be afraid to go into a book store and buy it.
I don't know how Authonomy will develop, but its mere existence is a sign of change. I am currious as to the reasons that Harper Collins invested what has to have been a lot of money in the development of this site. Most publishers just refuse to accept unsolicited mss. I suspect that they may have some notions about ways to generate revenue from the site. Then again, maybe they are owned by a conglomerate that's in the real estate business.