Hmm, I have an idea and we can discuss to see if its fair or not.
Only users at the member level can do trades. I know some of you have been here a while and done many trades and are reliable without being ‘member’ and you can message me privately and I can perhaps raise you to member.
As for selling, I’d prefer not to limit new users from buying. I know that sometimes you got what you needed from an NFT and would like to sell and being limited to only members would limit customer potential. But perhaps new NFTs can only be sold to members.