Haha yeah, you can... But if it's in Upcoming releases or The Best of Trance sections, a normal way is preferred (because you have access to the custom fields such as artist name, release name, label etc.).
@Progrez you can direct your feedback here: Forum feedback and see how the users respond to it. This forum is not an official marketplace, but if there is enough interest, we can certainly have a place where users can at least post what they have and what they want regarding vinyl/CDs, and discuss with others about a potential giveaway/purchase (without bidding and personal details).
In any case, we will be making a few changes anyways, and this might fit. Us admins will definitely be discussing this.