1. I have a problem with the citation of preprints because they are not peer reviewed. How do you know you are citing work correctly? True, preprints are not peer reviewed in a journal-organized manner. However, PREreview and other efforts have been trying to increase the community feedback on  preprints such that peer review happens openly by a larger pool of scientists in order to improve the ‘final’ product. The way to ensure that citation happens ‘correctly’ is by reading the preprint and ensuring the citation is appropriate, just as you would do if citing published, peer-reviewed work. Also, there is no guarantee that an article published in a journal is a) the right one to cite in your context and b) that the results you are citing are correct. Whether it is peer reviewed or not, you should check the soundness of the science in the publication and judge for yourself. Finally, citations will include the name of the preprint server to make it obvious that it is a preprint.