Question

How does an audience profile help you develop your advertisement

Answer 1

If you have an audience profile, you can know what to tailor your adds to, to make the ads more effective.

Answer 2

When you write anything (be it an advertisement or essay/paper), you will always need to keep your audience in mind.  Audience awareness will help you determine what kind of language difficulty (or easiness) to use, what type of generational references to use, and/or what type, if any, pop culture references to use.  An audience profile could comprise of age, gender, geographic location, education level, political affiliation, etc.  And, this would greatly assist in knowing how to tailor your advertisement.