Well tbh i wouldn't care too much about that, but i'm not a developer. It's the old thing about it can be cheated so I won't implement.
Tbh i think that the game design is more important of what can be cheated or not. Even in an MMO game.
But, said that ... would be cool if this whole thing would come with a remake of the hunting system. Where you first need to discover scents of big animals, and these scents would be the animal discover. So they will not pop up from the air.
And also ... the thing i already said multiple times, a hunting system similiar to URW.
P.S. If you haven't discovered all the scents yet, for aggressive animals, another way to discover them would be being attacked by them from nowhere, cause you cannot see them yet, but when they aggro you, the discover will trigger. This would be the bad way to discover aggressive animals
