Cool, all for decentralization but aren't there already NFT exchanges that does it?
Great question! At the moment there are no NFT exchanges that have universal ERC-20 compatibility. They either have ETH as the transacting token, or require you to request token options to their team. Then, they make the centralized decision to let you use a given token.
In addition to dictating what tokens you can use, other platforms require you to lock your NFT into their contracts, and some even go as far as to enable royalties on minted NFTs, but only when listed on their platform. This creates intentional switching barriers forcing you to use their platform, and then centralizes control over the configuration of listing contracts.
On top of locking requirements, they require you to complete an identity verification process to list on their platforms. This lowers the censorship resistance and open nature of the NFT space, and gives them centralized control over who gets to participate in the ecosystem.
On Denex there is universal ERC-20 compatibility, no NFT locking requirements to create a listing, and no verification requirements. Our DNX token will also represent governance, so the decision making will be decentralized. Please feel free to ask more questions if you think of any, and I'll be more than happy to answer!