SE, you know the fans of your game are endlessly creative.

You know this because of 10 years of FFXI.
You know this because of windower.
You know this because of 100 different mods and aps that came out based on windower.
You know this because of salvage duping.
You know this because of bots at ground kinds for 7+ years.
You know this because of fish bots and Hakyru.
You know this because of the unlimited colorless soul packet issue that has been exploited recently.

If you don't fix the gil spam shout, someone else will, with a mod that interacts with your game in a way you don't like.

I recommend you fix it before someone with too much time on their hands fixes it for us.