1337hunt3r

Hey guys, I've been thinking about this topic for a while and I've come to the conclusion that ABing is not safe, unless I'm somehow misinterpreting how AB'ing works or TNT is completely stupid.

I am under the impression that AB'ing works like this:
Abrosia waits for a certain amount of time (between 2 fixed amounts) and refreshes until a desirable item is found.
Abrosia then waits some more, clicks on the item, waits even more, and finally purchases the item.
It switches to a different store after 300 refreshes.

Here are the main issues of AB'ing:
1. Normality. It is reasonably safe to assume that the distribution of time it takes for a human being to refresh is approximately normal (this is a common phenomenon). However, my observations show that Abrosia apparently does not implement this; If I enter 8 to 10 seconds as the waiting time, it will wait a random amount of time between 8 to 10 seconds, with each time having equal probability.
2. Accuracy. Abrosia switches stores exactly every 300 refreshes - this is a pretty clear indicator that somebody is using a program. What kind of legit AB'er counts exactly how many times they refresh in one store then switches to another store after 300 refreshes? This is pretty ridiculous if you ask me.
3. Endurance. Many of us often leave Abrosia on for long periods of time, meaning that it's refreshing every few seconds, without breaks, for hours at a time. Regular human beings are incapable of doing this. There is just no way you can refresh at a screen every day for hours without getting bored or tired.
4. Fatigue. Even if you could refresh for hours a time, you're going to be tired at the end of that marathon, which will result in slower reflexes and longer refresh rates. Unless you're pumping red bull into your system the whole time, your speed will decline.

This is why it surprises me that TNT is so ineffective at catching AB'ers, even with all the dead giveaways.
Any input on this topic is appreciated. Discuss.