Well, is there a reason to believe scientists have become 3x-10x more fraudulent in the past decade?
Possible reasons for a scientist to be fraudulent is glory and fierce competition (which is usually for jobs and grants). Both factors existed prominently in the past as well as nowadays. On the other hand, as buybuydandavis points out, there are good reasons to believe that we've become better at spotting suspect scientific articles.
From Gene Expression by Razib Khan who some of you may also know from the old gnxp site or perhaps from his BHTV debate with Eliezer.
Link to original post.