It's probably some kind of weird programming bug for registering accounts. Maybe it's like forum member magma, and the registered users are like forum member lava?
Chinese spam bots cracking the captcha.
Someone just quote one of the other 4 topics please.
How does it make a email and just make a account?It seems odd.
How do the bots manage to crack the capatcha? do they just enter random numbers and letters for hours?