Feel free to suggest reasons that people seem more inclined to e-mail the author than write a review, or why F/m stories are so lacking, as I am a little stumped on that count.
I think the reason people are more inclined to email an author is simply that they feel less intimidated than posting in public. I think Janie's post reflects many reader's thoughts "...Sometimes too i feel a little inadequate after more eloquent reviewers have written and all i want to say is "Yeah, what he said." Perhaps others who have trouble expressing things verbally might have the same problem."

As for why there aren't more femdom stories, that's a good question. I know the ratio of dominant women to submissive men is very unbalanced. Maybe submissive men just don't feel comfortable writing about their experiences/fantasies? That being so, why they're not is another good question.