One thing that isn't mentioned is that the "friction" in selecting your friends is actually a positive. Instead of someone just shouting out to the world, my friend actually picked my name to receive some post. Not to mention: Snapchat has this built in status for how often users snap each other back. It's a built-in mechanism to get me to respond, similar to the way Facebook wanted it's "Sling" app to work, but without forcing the issue.

I used Snapchat with a very small number of good friends fairly heavily for about a month. Things we shared:

- what we ate - walking to work - on the bus/train - waiting in line - nothing at all - drawing on pictures of people - example: a friend is watching ESPN talk about the owner of the 49ers, Jed York, and drew a dunce cap on his head

I think we averaged 10 messages a day each.

Basically, for us, Snapchat was for sharing photos too stupid or personal for Facebook or Instagram.

The stickiness eventually faded. We got tired of seeing the same food, the same office, the same bus every day. Contrary to how we might represent ourselves on Facebook (SUPER AWESOME!!!!), Snapchat showed each other how utterly mundane our lives were. Of the original group of ~5 people, there's maybe one left.