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No, Vic, you're wrong here. Many players have their own style; the devil is in the details.
For example, I almost always take a Peasant to become a Scholar, even though I know that most players would never do that (because it's considered a useless skill). But I'm hoping that the Scholar will give me +1 skill (according to probability theory, this is very likely).
And in the game where someone was criticized for taking Tactics at level 4-5 instead of Air Magic, I would have taken Tactics too.
As practice shows, it's almost impossible to 100% prove that someone is cheating (even remember the case with the great Alex), but the details and nuances help us, as well as the intuition of many players.
Дипломатия - искусство говорить собаке "хорошая собачка" до тех пор пока не найдешь подходящую палку.