Dramatically negative subject lines in emails (for example, "End of the World") are never appropriate.

Question

Quizplus · Accepted Answer

While generally discouraged, dramatically negative subject lines can be appropriate in certain contexts, such as marketing campaigns designed to grab attention or in situations where the content genuinely warrants a strong warning or alert. The appropriateness depends on the audience, purpose, and context.

Dramatically Negative Subject Lines in Emails (For Example, "End of the World")