We like to see all links to where pictures originate. One of reasons for this is that there have been instances where we've authenticated an item where pictures showed an authentic bag. Yet, upon ultimately seeing the listing, we saw that the pictures were stolen from another source, sometimes an ebay seller, sometimes some online blog or even pictures stolen from TPF reveal posts.I thought Craigslist postings were not links you wanted posted. I thought just ebay. My mistake.
Additionally, the listing is helpful in instances where the pictures show a fake because many sites have some type of "report" button where we can flag the fakes, possibly saving a buyer from buying that fake.