Hello, my dear friend.
I'm so lazy to read your big (VERY BIG) listing. I have only one question: how this 3 users differs from another 57 users?
P.S. Are you russian?
you know, I have not written big quote. The code was big. But it has no any meaning. Because problem is in first line. No need to understand it.
There is no any difference between those users. They also tried it from different browser and even computers.
BTW: I am not russian.