Lately there has been more than the usual emails asking if the current work is finished and if I now have time to read xyz ms.
I don't think anyone realizes how many times I go through a ms pending publication. I can almost quote it by the last reading (marking all over it). It is a wonder the author (any author) still emails me after all the times the ms has been sent back for rewrites. On the other hand, not every publisher has the patience for works that require multiple rewrites.
Most of the time it has been a gracious exchange with many patiently withheld frustrations - I'm sure. The ones who won't do rewrites get sent packing.
Here's why: http://publishingperspectives.com/2011/06/learn-the-fking-rules-grammar