Sorry for the late response to this, but the answer is clear.
We're not making any profit off of this at all, so what grounds would their lawsuit stand on? If we were poised to make a profit off of the works that THEY have done or take credit for all of the Lore in FFXIV, then Yes we'd be doing something worthy of a lawsuit.
In the most base sense of it, we're just putting up a collection of Fan-Fictions for free download. If they want to sue us for that, they'd have to sue everyone who wrote a fan-fiction ever.