I'm seeing a couple of newbies selling S9's near op's selling price. Did bitmain dropped it big time when I wasn't checking? or is this the S9i? maybe this is just the usual fraud?
Anyhow, If you wanna sell here, go to Marketplace --> Goods --> Computer parts. Another thing, stop solely looking from a seller's point of view, you ought to also consider the buyer's. If you were one, would you trust an anonymous newbie claiming to own an S9 without any proofs? No right? so you gotta work on that: post pictures/videos (preferrably with some note e.g. your username+bitcointalk+date), indicate the use of
escrow, how the whole transaction will, take place securely etc..