As gOOk said, only ISO threads are allowed.
If you wanted to sell an RP card or skin code you would need to do so in the donor forums.
Quote (R0DE @ Feb 27 2021 04:29pm)
I believe technically you're only able to do this on donor forums, but i'm not sure.
people do it on here regularly, but the threads usually get closed once a mod views it
Making illegal trades can have hefty consequences, so I wouldn’t suggesting attempting to make a ft thread here and bypassing the rule.
Good luck with your trades