It has all been said before, of course. Research assessment “rests too heavily on the inflated status of the impact factor”, a Nature editorial noted in 2005; or as structural biologist Stephen Curry of Imperial College London put it in a recent blog post: “I am sick of impact factors and so is science”.

Even the company that creates the impact factor, Thomson Reuters, has issued advice that it does not measure the quality of an individual article in a journal, but rather correlates to the journal’s reputation in its field. (In response to DORA, Thomson Reuters notes that it’s the abuse of the JIF that is the problem, not the metric itself.)