That's a loaded statement. The game has an issue with retention but the reasons are varied and the people who do stay aren't just there for story despite the game. One thing most people who do end up making it past the first hurdle of ARR mention is that gameplay does get better later on and that the class identity is just an absolute treat. Each class having their own UI elements and mechanics to watch out for, plus positionals for the melee that use them, does make the gameplay fun.
And that's not mentioning the environments, encounters, and music. Zones and instances are a complete visual and audio experience, then you have crafting and gathering offering a more complete experience for people who enjoy it and fishing basically being it's own game, and add to that the multiple FF references for the fans of the series, and there's many reasons people enjoy the game as a whole, not only the story. Unfortunately for people who cannot get past the initial hurdle or who are looking for a game that only focuses on combat like WoW they wouldn't be able to experience or appreciate any of that.
It's a different MMO for different people. It's ok to not like it but no need to pretend it has nothing to offer outside the things you particularly like.
Novice Network is Trade Chat but the trolls are the moderators. The place is a complete cesspool of a few mentors who bully and degrade everyone and threaten to kick and/or harass them if they speak up. It goes beyond the chat though, every mentor I've met maybe bar two have been the worst players I've seen in all of my years of playing MMOs, not just FF. The mentor system is a complete failure and would be best removed.