(06-26-2015, 12:39 PM)SpaceTime Wrote: Meh, is it a problem now that it is unclean?
Not unless you're going to use that folder for re-installing Disco, no.
The vanilla folder is only referenced when actually installing the mod. After that, you can do what you want with it, but it's good modding practice to keep one clean copy of vanilla FL on hand.