Saltman, let me explain this.
Everytime a computer connects to the internet it aquires an address, called an "IP Address".
Each computer gets an address. Two computers in a house, for instance, will still have different IP addresses. Sometimes, depending on how an office network is set up, all the computers on a network will have a single IP address.
The point is, Saltman and Saltdude have the identical IP address. As Mods we can see what your IP address is, as well as basic info about your Internet Provider (Comcast)