Clickbait is a form of false advertisement which uses hyperlink that is designed to attract attention and entice users to follow that link and read to the linked article, with a defining characteristic of being deceptive, typically sensationalized or misleading.
Flat-Earthers fall into clickbait headlines rather too easily. They rarely bother reading the article contents, let alone verifying the primary sources — many clickbait headlines spread in flat Earth communities as hoaxes.