To substantiate my claim I offer the definition of a Dementor adapted to the mall. Definition lifted from the HP Lexicon and unabashedly butchered for my purposes.

"Malls are among the foulest places on the face of the earth. They infest the darkest, filthiest places, they glory in mock-beauty and despair, they drain peace, hope, and happiness out of the air around them. Even the shop-a-holic feels the malls ghastly presence, though they can't keep themselves away. Get too near the Mall and every good feeling, every happy memory will be sucked out of you. If it can, the Mall will feed on you long enough to reduce you to something like itself...soul-less and evil. You will be left with nothing but the worst experiences of your life."

I must admit that I kind of enjoy plazas, but then I would say a plaza is entirely different from the mall. No crazy floor plans designed to keep you lost inside. No constant 21 degrees Celsius.