I firmly believe, based on decades of experience in scientific publishing as an author and an editor, these these preprint servers do more damage than good to science. One of them maintains: "bioRxiv can save authors time in submitting papers to journals or peer review services by transmitting their manuscript files and metadata directly from bioRxiv. This means authors do not have to spend time re-loading manuscript files and re-entering author information at the journal or peer review service website." I can't believe what I read. If these preprint/pre peer-review "papers" are freely accessible, they will be cited even if the final, decently published paper was quite different from the preprint. Often for example the statistical analyses will change after peer review and that will probably affect the results in one way or the other. No wonder people don't believe in science...