I have found the first marketplace post

[Waping]

Technically…

About the Marketplace category

Use this category to post about items you are looking for, or search to try and find items that people are offering. If you are offering items, be sure to include your in-game name, what items you’re offering, and what you want in return for them. Marketplace Rules Trading items in the game for Robux or external currencies is prohibited as it is a violation of the Roblox Terms of Service. Trading items in World of Magic for items in another game is prohibited due to the possibility of scam…