I live in Juárez world, server en23, so yes, I think I'm writing in my world's Forum.
He means an in game forum.
most worlds have a town that hosts a (informal) “world forum” for posts like a market request.
While indeed you posted this to the Juárez thread on the all worlds out-game forum, convention has generally discouraged using the out-game forum for individual In-game requests.
I’m not saying you’ve done anything wrong, but you aren’t especially likely to find what you are looking for this way.
The best response would have been “please redirect that to Juárez’s in game “world forum”; if you don’t have access to that, ask in the saloon who can add you”