This is an interesting concept. I do believe that everyone would be much more accepting and understanding because many dark secrets would come out. Because these deep, dark secrets are possessed by virtually everyone, they wouldn't be viewed as extreme. On top of that, people might adapt to criticism, considering they would get it constantly. This would make for harder feelings and do away with the need for a white lie. On the other hand, people with evil intentions couldn't get away with anything, and politicians would all be pure! Many religions wouldn't have been formulated (considering only one CAN be completely true,) also doing away with a lot of religious turmoil. The world would probably become a better place.