I use FamilyTreeMaker for my personal genealogy files. I just looked and when a GEDCOM is created for export, there is an option to either include or exclude media files in the GEDCOM. It might be good for WikiTree to instruct people who are uploading GEDCOMs to select that option, if possible. It might be possible for WikiTree to set up its upload process to exclude or reject GEDCOMs which contain media files, but I'm not sure it would even be possible for media files to be "filtered out" of a GEDCOM upload. Right now, whatever is in the GEDCOM, is uploaded to WikiTree--that's why there's so much in a GEDCOM-created profile which has to be "cleaned-up." Ultimately, it really is up to the person who chooses to create profiles in this way to do their own cleaning and manually remove references to media files, but so many people who choose this method of profile-creation never bother to do the cleaning and it is left to other WikiTreers to do.