The document discusses 7 deadly sins of taglines: 1) Cleverness - taglines should meaningfully convey benefits rather than using cute words. 2) Blandness - taglines should be exciting and inspire rather than being safe and generic. 3) Banalitiy - taglines should dig deeper than platitudes. 4) Imitation - taglines should illustrate differences rather than plagiarizing others. 5) Deception - taglines should not promise benefits the brand cannot deliver. 6) Vanity - taglines should focus on customer benefits rather than self-promotion. 7) Recklessness - taglines should be properly trademarked to protect the brand.