When you create a list or a listing by LINK, Dolyst’s servers tried to read that site and get the title, description, images etc.
Some sites make this difficult. There can be a number of reasons. Sometimes you are logged into that site and we get different info when we look. Some sites redirect first time users to a different page. Some sites also show offer pages, or “pleases accept cookies” before they show you content.
The same applies to images. Sometimes we show you a list of all the images on the page, sometimes that site makes it difficult for another computer to extract images.
We are big fans of creating listings by location if its a place, business, or address. If not, often the Wikipedia links are a great place to start. See the “Dr. Seuss Book List” as an example.
KNow that its important to us to make creating a list as easy as possible. We will keep working on it.