Lizzie Gadd speculates as to why Elsevier endorsed the Leiden Manifesto rather than signing DORA, and what the implications might be. If an organisation wants to make a public commitment to responsible research evaluation they have three main options: i) sign DORA, ii) endorse the Leiden Manifesto (LM), or iii) go bespoke – usually with a statement based on DORA, the LM, or the Metric Tide principles.