I recently received a rejection letter with a detailed response about what they liked about the story, what didn't work, and how I could make it better. I really appreciate the response and that they didn't just send a form rejection. My initial reaction was to write back a quick thanks. I was wondering if this would be okay or if you're just supposed to take the rejection and move on and not bother them with another e-mail? Is there really a right or wrong here, or an "industry standard", or should I just go ahead and write back the quick thanks, since that's what I'm most inclined to do?