If you only use the mods from this guide, then this will not be necessary. If you already have a lot of mods installed, and you want to add these mods on top, then you probably need FO4Edit to look for mod-conflicts. FO4Edit can also fix a lot of other issues, but those are not important for any mods included in this guide. This will leave references from other mods still being valid (no crash), and prevent the object from appearing in-game at the same time. FO4Edit can 'undelete' such deleted objects, and 'disable' them instead. If only that one specific mod or DLC is loaded, this won't cause any problems, but if another mod has a reference to that specific object that was deleted, then the game will most likely crash when encountering the object in-game. A 'dirty edit', is when a DLC (or a mod) contains data which removes an object by deleting it. Why Bethesda didn't think it was necessary to spend the 10 minutes it takes to clean up their sloppy editing before release is a mystery, but fortunately it's very easy to clean it up for them. However, when mods are loaded, these dirty edits can cause crashes. These 'dirty edits' are not causing any problem if the game is left un-modded. Info: Bethesda's official DLCs contain deleted references, which can cause problems when modding the game.
