Science publishing is a classical case of the Market for Lemons [1]. The authors are like used car salesman in that they know so much more about the results in their paper than their readers and referees. Even if just a minority of authors abuses this, the value of publishing a paper plummets and honest authors don't bother any longer with the whole process. The well has been poisoned.
[1] http://en.wikipedia.org/wiki/The_Market_for_Lemons