dumb decision to dedicate yourself to a proprietary game’s little microtransaction market now aint it.

Owners of CSGO(CS2) 3rd party marketplaces seem to be making a killing off of fees, so it can be done successfully. But I doubt that Rocket League trading sites see anywhere near the volume of CS2 sites.

Why in gods name would a game remove trading after it’d been around for a while?

Jagex removed trading from RuneScape back in the day, for less greedy purposes than Epic is doing here, and it effectively killed their game.