It's subtle, but it's absolutely designed to induce feelings of negative emotions to evoke a click. If you'd like to look into this field of study, search up "shadow patterns" or " dark patterns" as that's the modern design language meant for working with data on mass scale in order to drive engagement. (To the down voter, the fact you can't see it is both sad and the point of the design. Unfortunate because it's true. I've sat in these design meetings with software teams and marketing.)