There is no indication that this type of behavior has emerged in the physics, mathematics, and computer science communities as a result of wide-spread use of preprints. Scientists do not engage in quick posting of low quality work because they are wary of developing a bad reputation in the community. Furthermore, if the work is poor, then it will likely just be ignored by the rest of the community. A discovery is not just a date stamp; there has to be clear data supporting the discovery and clear articulation of the nature of the discovery in order to make an impact on the scientific community.That said, preprints could potentially allow authors to post (and update) papers throughout the process of their development, enabling them to share findings with the community before polishing them into a more comprehensive story.