The New York Post tells us how restauranteurs profile clients. Here's something interesting about OpenTable, the on-line reservation website:
Of course, we like restaurant owners to know us as individuals and treat us well. One of the coffee shop owners I frequent noticed that I like to put aside the tea bag before drinking tea, and soon enough, he started bringing me a small glass to hold the tea bag. In the past, owners observe customers; now, they can build detailed profiles using our data.
Better service or big brother?