Even though there's a lot of users on Yik Yak, I feel like snapchat doesn't follow the 1% rule (http://en.wikipedia.org/wiki/1%25_rule_%28Internet_culture%2...).

On yik yak their's a lot of lookers, but few posters. On Snapchat everyone is creating/viewing content. Its become the replacement to texting. Shall I dare say its the whatsapp of American 18-25 year olds.