A lot of folks place the blame on the individual who responds so radically. Now switch to a musician who sits down to write a cover letter he'll use to drum up media exposure. He knows his band is awesome and the new CD kicks butt. So he gets to work writing about the band's accomplishments, the awards they've won, where they've played, etc. The letters and press kits go out.
Weeks pass by.
No editors or writers respond. He knew what his intention was. Intent is what you WANT or HOPE will happen. When it comes to communicating, your intent doesn't matter. Results are the only thing you should be focusing on.