After this good start, he basically destroyed every single part of the document by (rightfully) criticizing a lot of aspects, etc...
So, his emails looked like this:
thanks for working on this!
And, BTW, this is wrong ... that should be explained in a different way ... this you did not understand... Please rewrite that...
and so on... And the frustrating thing is that he was right 99% of the time. I always suspected that he used the "thanks for working on this" thing for making all his critics more acceptable.
Now, the scary thing is that few days ago I found myself writing "thanks for working on this" to someone... Does this mean that I crossed the line?