I took a look and was a bit put off by the bulk packs that are the majority of what's for sale (with some of them saddled with the same intellectual property issues as at Creative Market). I don't want to compete with packs of 40 images (with little/no information about the sizes) for $10 with no license (that I can see).
You could forgive a purchaser there if they thought they were buying outright ownership of the images - there needs to be something pointing to license terms, if in fact you are purchasing a royalty free license, with some terms and restrictions.