It's likely no one is responding because of the forum guidelines about what's acceptable to post:
While we appreciate your time and participation, we respectfully request that you follow some general guidelines on what not to post:
• Do not post advertisements or solicitations for external web sites, contests, paid service offerings, or [b]other solicitations[/b].
• Do not solicit Kindle Direct Publishing members on the discussion boards to be your potential customers.
Also, customers are well aware of authors swapping reviews, and many of them don't like that practice. Just sayin'.