Cause a 360 degrees turn is a revolution, thus has connotations of being something new and revolutionairy, making it seem more appealing to the target audience.
Anti-humor is a type of indirect humor that involves the joke-teller delivering something which is deliberately not funny, or lacking in intrinsic meaning. The practice relies on the expectation on the part of the audience of something humorous, and when this does not happen, the irony itself is of comedic value.