Users of the popular, fairly new Snapchat app tend to like it because a photo vanishes within 10 seconds or less of being viewed by its recipient. That adds something fun, spontaneous and just "real" to photo-sharing that's pretty unprecedented in social media. New parents' guide Here's why: Typically in social networking, "users tend to feel pressure to curate the perfect representation of … [Read more...] about Snapchat: Privacy as perishable as the photos