"However, after two years, we are winding down Quill as we continue to evolve Inkshares. One of the strongest assets of Inkshares is its community of authors and readers—many of whom provided us with valuable feedback on the strengths and limitations of Quill throughout these two years. This feedback, along with our own insights gleaned from the process, helped inform our decision to wind down Quill. " 

Perhaps look more into this?