Dont really know but people can use it to find all preload data nice and cleanly and is stored locally every area
When PoEHud detects an area change
When Dump Preload Data is enabled it will dump all preload strings sorted alphabetically and saved like https://pastebin.com/raw/gBhFiRdq
Example of folder structure: "PoE HUD\Preload Dumps\17-08-2017\The Sarn Encampment (33)\11.34.48 PM The Sarn Encampment (33).txt"
File extensions can be excluded from logging by enabling/disabling them under File Extensions menus, sorted aplhabetically