I would like to thank Michael Ingre, Martin Lindquist and their co-authors for their thoughtful responses to my ironic Comments and Controversies piece. I was of two minds about whether to accept the invitation to reply - largely because I was convinced by most of their observations. I concluded that I should say this explicitly, taking the opportunity to consolidate points of consensus and highlight outstanding issues. (C) 2013 Elsevier Inc. All rights reserved.