It’s very obvious why Final Fantasy XIV has items like Antidotes. These medicines are consistently present across the series, so they need to be in the game. But in any content wherein poison is actually dangerous, it’s either tied to a fight mechanic and must be dealt with as such or it’s trivial and can be removed with Esuna in the unlikely event that you or the healer even care. The time spent using an item to remove poison is basically always better spent doing almost anything else.
A lot of us, it seems, have problems with stockpiling consumables to the point that they don’t get used even when it would be advantageous to do so. But sometimes those consumables aren’t just unused but don’t have a use; they do actually do something, but they’re the solution to a problem no one has ever had. So which MMO consumables are completely useless? Which ones could be removed from the game altogether with no ill effects?