The only thing I might have noticed [and this is pretty anecdotal] is that there is some tendency to need to be taught that 'writing is rewriting' - maybe more of a sense than was pervasive 10 years ago that the first or second pass of a story is sufficient. That is an idea that is easily dislodged, but I suspect it might have something to do with the turnaround time re: blogging and so on - this sense that there is some essential truth about a first draft that one runs the risk of "ruining" by coming back to it.