That is the way these puzzles work, here is a classic example
Romeo and Juliet are dead. They are lying on the floor in a pool of water. There is also broken glass around them. A window is open.
The solution is that Romeo and Juliet are fish and a cat knocked their bowl off the shelf.
You have to ask questions to figure out that they aren’t just your run of the mill murder victims.
Read some of the other threads for more examples.
In this case we know that he is a troll who has found a unique way of turning a profit from his trolling. We need to discover that unique way.