when opponent activates "allure of darkness", the game doesn't ask me to activate "APPROPRIATE".

also, when i activate the trap card, shouldn't I receive two cards? The game just activates it, so I need that the opponents uses some "draw effect" 2 times and only on the second time I receive the benefits.

The last thing to happen when resolving Allure of Darkness is banishing a monster from the hand, so Appropriate misses timing.
Also Appropriate needs to be face-up on the field at the moment your opponent draws. The card is working fine in YGOPro.

The last thing to happen when resolving Allure of Darkness is banishing a monster from the hand, so Appropriate misses timing.
Also Appropriate needs to be face-up on the field at the moment your opponent draws. The card is working fine in YGOPro.

Misses timing? But the effect itself is to draw cards. I get that effect that say "you can get from deck" don't work. I understand that it says only "draw".
Missing timing doesnt make any sense.

oh well..

The activation timing of "Appropriate" is when the opponent draws a card(s). The last thing to happen must be the opponent drawing in order to activate a Set "Appropriate". Furthermore, you don't get to draw 2 cards upon activating the card, but only when the opponent draws while "Appropriate" is already face-up on the field (the English text is very old, bad and confusing).

In this scenario, like SotheY said, the last thing that happens is the opponent banishing a DARK monster from their hand and not the drawing, as denoted by the "then" in "Allure of Darkness", which means that the draw and the banish don't happen at the same time. So, "Appropriate" misses its activation timing in this case.