>The whole app is a UX disaster of proportions. As a UX designer, I think that Snapchat did this on purpose. They know that "the olds" will grow frustrated wit

>The whole app is a UX disaster of proportions. As a UX designer, I think that Snapchat did this on purpose. They know that "the olds" will grow frustrated with the UI and won't use it, but they know that the younger crowd who have grown up with mobile interfaces and their accompanying interaction patterns (tap, swipe to reveal hidden items, long press to reveal hidden items, etc) will know how to navigate around the app and are willing to put up with the UI flaws. This has two valuable results (at least from Snapchat's point of view): 1) Older people won't use it, which makes the younger generation perceive it as a safe space from their elders. 2) Advertisers are guaranteed a pool of younger users who have disposable income. As for the appeal of Snapchat, it really lowers the cognitive barrier for updating people about your life. Personally, I spend more time curating items that I post on Facebook as it feels more permanent, but on Snapchat there isn't that pressure as the picture will disappear in 10 seconds or less.