Honestly they should just add a zone, count it as part of Jeuno for /yell reasons, and make it an open area for people to shop from other players. It could be a zone just for that reason alone, at most add a few warp NPCs and a hope point. This would give everyone on every server an official shop zone in Jeuno, while shopping you can see yells from Jeuno thus missing out on nothing and allowing a central, out of the way place, where people can go. With that done, no area in Jeuno would be lagged thanks to hoards of afk players, bazaars would be easier to find, and I think the problem would be completely solved.