Recently worked on a multiple #CoAuthored article with some colleagues AMD also working on revising some submitted #SingleAuthored articles. Thinking about issues with #AcademicPublishing and debates about #PeerReview and troubles finding reviewers, seems to me that we also need to fold into this the issue of why we value single-author papers when co-authorship (I mean genuine #CollaborativeResearch and writing) can build peer-review into the writing process.