I wrote a Phewtick Hack a few days ago.
It started out as a hack via their RESTful API to automatically scan QR code and get Phewtick points ($$$).
Today, Phewtick released a new version 3.2.0, which includes 2 new features: timeline and messaging.
I took a look at their API (again)..
The timeline shows not only the friends I met with, but also the friends that my friends met with!
The messaging API allows me to send to anyone!
This python code will allow you to spam Phewtick user id 123456.
from phew import * message(0, 123456, "Meow~")
I could easily spam everyone in Phewtick with 2 lines of code.
for id in range(0,1000000): message(0, id, "Meow~")