Frankly, I'm all in favor of some kind of punitive action against people who sign up for print exchanges but refuse to send their prints. There should be some kind of system in place however, before said punitive action occurs. IE if they fail to respond to 3 PMs in 3 months, some APUG priviledge will be suspended (lock their gallery from more postings, no more than 2 posts per day, no access to the classifieds, you decide). That rule set needs to be in place BEFORE the print exchange starts, so that they know what the consequences are for not playing through before they sign up.