That's based on a report conducted in part by the Scottish Information Commissioner, who found roughly 50% of voluntary organizations avoided using their access rights out of fear of something. I think there are fears that do percolate and inhibit people from using it. That's why I think it's crucial that all FOI laws, or the ATI act, protect the identity of the individual person using their rights throughout the entire access procedure.
On April 21st, 2016. See this statement in context.