TOURNAMENT TROUBLES!

Yes, the AI sometimes crashes into neutrals, and in that case, I believe the neutral loses its upgraded stack.
But: the AI has no goal to weaken the neutrals in order to wipe them out with small forces later! It simply crashed and forgot where it did so, and therefore the AI is not using the bug—don't twist the words.

Who is twisting the words? First you said the AI doesn't use it, now you say it sometimes uses it, but without benefit to itself. Did you calculate its benefit? Once it attacked and forgot, but another time it might attack there again and not forget. And what about the situation where the computer accidentally helps one player but not another—doesn't the factor of luck/misfortune for real players kick in here? The player whom the computer does not help will be forced to bash through an additional stack of upgraded troops, while the one it helps no longer needs to do that. And if the feature were allowed, the second player could have tried to weaken that army themselves since they were unlucky with the AI's behavior. And what do you mean the AI "doesn't use the bug"? It attacks, it dies, the upgraded stack disappears—what else is needed? That stack cannot be recovered. And someone will still wipe out that weakened army—either the AI itself or a human player.

It just randomly does what we try to do consciously, and there is no benefit from this action for it. That's exactly what I called the AI's stupidity... :)

Yeah, and you want to paint everyone with the same brush and make them just as stupid as the AI :) Even if it's unconscious, even if it's a fool, the AI can still benefit from this action. It cannot be stated for certain that there is no benefit for the AI. Firstly, it always has endless money and losing 2500 is probably irrelevant to it; secondly, there's no guarantee it won't charge in the same direction with another hero. Moreover, I pointed out above that the AI can accidentally help someone :) Admit it, for the person it doesn't help, it's surely easier to weaken the army themselves than to make the AI dance to their tune. Now we have a concrete random inequality between real players (lucky/unlucky). And the fewer random factors influencing the result, the better it probably would be. Because if everyone is allowed to use the army weakening, NOTHING will change. All players will remain on equal footing, only even more equal than with this ban :)

As for "neutral rushing" — the AI, even if by accident, uses this trick to its own benefit — it works a hundred percent. That's why we don't ban it.

Right—if a bug works a hundred percent, then it's a feature :)) The trick with weakening troops will also work a hundred percent if it's allowed. Only then will there be more chances to avoid the accidental influence of the AI on this process.

This topic was settled long ago on other resources... I

I don't care about other resources. Did they settle it the same way you are settling it?

have no interest in explaining this a hundred times—if you don't understand the exact difference between the concepts of "using" and "not using," then there's nothing I can do to help.

You didn't explain anything :) You are the one who doesn't understand the difference between "using" and "not using." I'll explain slowly: if the event occurred and the stack vanished, the computer HAS ALREADY used this bug, whether intentionally or accidentally, on purpose or by mistake, for its own benefit or not :) Even Bill Gates and Kanigem probably couldn't answer that :)) And this event can introduce imbalance when different players play the same map, and they have no particular desire to figure out why the AI weakened an army for one person but not for another on the same map from the same starting save. Give the player the opportunity to control the situation themselves during the playthrough without taking into account the errors in the stupid AI's behavior!!!