Well well, this is big news and indicates the next wave of change fpr the publishing industry. Given all the changes on WP I would forecast that more will be on the way as the Gnomes of WP seek to further monetise their asset.
"A Message from Authonomy
It is with great sadness that we must announce the closure of Authonomy.
We created Authonomy in 2008 as a way of discovering new talent by throwing open our doors to unagented, aspiring writers, and asking likeminded writers and readers to help us discover and champion great work. Through Authonomy, we found fantastic authors, such as Miranda Dickinson, Steven Dunne and Kat French, and published incredible titles, such as The Qualities of Wood and Someone to Love Us.
Unfortunately in recent years publishing of titles from the site has slowed as we have opened other submissions channels, and the community has become smaller, so the decision to close Authonomy has been made.
HarperCollins remains committed to discovering new writers, and this is reflected in our dynamic, genre-focused, digital-first lists such as HarperImpulse, and our open submissions windows for innovative commercial imprints such as Voyager and The Borough Press. We would encourage the very talented members of the vibrant Authonomy community to continue to show us their work through these channels."