I really wish you can add trading, like a player might find someone and they can then lookup the persons nickname and they can get a notification that you got a trade request in your journal or something and you and that person can see what you give and receive and once you both have approved you both receive the items saying that the request was accepted. If one of them didnt approve then you get a notification and they can maybe add a comment telling you why they didnt approve and maybe how they can improve the trade.
The Foreshadow!! about Pokémon GO, v1.37.2