As a co-founder who got screwed on a large acquisition, it makes me happy to see that Snapchat finally settled. However, a settlement doesn't change the fact that Evan Spiegel really went out of his way to intentionally screw the guy that actually invented Snapchat's model - and seemed to enjoy doing it. He's definitely not someone I'd ever do business with. http://www.businessinsider.com/snapchat-lawsuit-video-depos…
Nothing unique (disappearing photo apps existed before, see the rest of the thread).
No programming expertise, he didn't make anything.