We first discovered D.C.-area artist Frank Warren’s PostSecret project at the 2004 Artomatic exhibit. The artist was handing out blank postcards addressed to a P.O. box, encouraging visitors to write a secret on the card and drop them in the mail. As the replies came in he would display the replies — ranging from whimsical to disturbing — at the exhibit. After the close of Artomatic the project kept growing: the City Paper began printing…