All test cases should be hidden.
The ##.b_ad rule will cause this item to be hidden:
The ##.back300ad rule would cause the first and second items to be hidden, but the second contains more than 5 words and so it grants an exception to the entire rule, making all items visible:
The ##.badge-gag-ads-container rule will cause this item to be hidden because even though it's longer than 5 words, it pulls in a cross-origin image:
The ##.bank-rate-ad rule would cause this short item to be hidden, but it pulls in a same-origin image and gets exempted so it's visible: