Our attempt to diagram out the logic behind choosing to live in Columbia Heights, according to the Washington Post’s Monica Hesse. (Illustration by Amanda Mattos) Some time ago I asked the DCist writing staff to avoid using the term “hipster” whenever possible. It’s a word we all hear and say plenty, but I’m never quite sure what different people really mean by it. Is it just someone who wears skinny jeans and Chuck Taylors?…