My Nonprofit Reviews

Curious to know why all reviews are written at the same time. 2011 includes 10 reviews all written on April 12, 13, 14 or 15. 2012 includes six review all written on June 6, 7 or 8. Seems odd. And all written by Board members or volunteers. No review written by people who have benefitted from the services of this organization. And does anyone else find it odd that no reviews have been written in the past three years?