**“**In an attempt to make the debate around the costs of open access publishing more evidence based”, the Readme file (14th March 2013) signed by Robert Kiley says, the Wellcome Trust released into the public domain a dataset including details of its open access spend in 2012-2013, “as reported by UK institutions and the Trust’s Major Overseas Programmes in receipt of an OA block grant”. As I wrote yesterday, Cameron Neylon subsequently