"anything meaningful" isn't quite what they analyzed, they just analyzed the claim that they "contribute and enhance text" during publication. The fact that th

"anything meaningful" isn't quite what they analyzed, they just analyzed the claim that they "contribute and enhance text" during publication. The fact that they didn't can't be used to jump to the conclusion that they didn't do anything meaningful. E.g. by determining a paper meets certain standards of accuracy, transparency and relevance would be some meaningful things that could still be done.