So if you want to sell an item in this example lets say bronze dagger and you put 20gp as price when selling it, you will receive that 20gp if somebody wants to buy it for that price.

However if somebody was buying bronze dagger for lets say 10 000GP when you tried to sell your bronze dagger for 20gp seller would not get 10 000gp, instead what he put as price originally (so that 20gp). There is no question in my mind that this is at least very wierd feature if not bug.

If this is how it is supposed to work then sellers should put always super high price and slowly move down from there (which makes no sense and takes a lot of time).

The selling criteria is always met. If you buy an item for 5m, the Grand Exchange will find all items that cost up to 5m.

The selling criteria is always met. If you buy an item for 5m, the Grand Exchange will find all items that cost up to 5m.

Yest selling criteria is indeed met but you never get more than you put in selling criteria (which should happen as well if there is a lot of demand for the item)

That's how it currently works. In the future we may change it but as for now it remains like that. Thanks