heres what one person wrote:
Your identity is never protected. As long as you have an IP address, it can be traced back to your MAC address and sometimes your physical location.
If the anonymous service is willing not to disclose your IP address, then the traceability will end with them. However, they themselves can trace the next step if they wish or are intimidated enough.
IP addresses are only good when they can be traced to something. So if your IP address is not wifi, then typically it can be traced to an address. If your accessing over Wifi, then they will use that IP address to give them the MAC address of your hardware. From that MAC address they will know exactly the hardware you used just like a serial number.
If your hardware lets you change your MAC address, then you can get some measure of anonymity.
you guys gave me good info and i understand it alot better.