Because it gets you attention and becomes very catchy. For example I am stuck on band-aid brand cause band-aids stuck on me. lol
When you talk to or about someone in a mocking tone, you're making fun of them in a nasty, mean way. But if you're a comedy writer or political satirist, a mocking attitude is a tool of your trade.
B. because u must know about whoever you're writing about in your <span>biography.</span>