It was more than that. People were looking at old wall posts (which were always public) and they couldn't believe that they'd ever had those conversations in pu

It was more than that. People were looking at old wall posts (which were always public) and they couldn't believe that they'd ever had those conversations in public. Hence jumping to the conclusion that their private messages had somehow been converted into public posts. I think it's fascinating on two counts. Firstly that the accepted etiquette of how we use social media changed so quickly. And secondly that people's brains can simply reject something they did in the past, if it doesn't fit their current sense of self.