> The platforms where these nfts are sold usually charge 1-2% commission which is expensive for a wash trade
This is a misconception; on Polygon for example OpenSea is built on top of 0x v3 (an open protocol for marketplaces); one could wash trade an NFT back and forth on 0x v3 directly and only pay the protocol fee (pennies in comparison) and OpenSea would still show those sales in its UI.
This is a misconception; on Polygon for example OpenSea is built on top of 0x v3 (an open protocol for marketplaces); one could wash trade an NFT back and forth on 0x v3 directly and only pay the protocol fee (pennies in comparison) and OpenSea would still show those sales in its UI.