Not me. I love seeing them suffer. I have lived on NY since 1983, but grew up in New England, and remain loyal to all my Boston teams, led by my favorites, the Celtics. I can't tell you how great it is to wear my KG shirt around town, getting silent, jealous stares from others. Wearing Red Sox memorabilia is just not the same, more likely to get verbal rebukes.
Besides, the Celtics' biggest historic rival is not the Knicks. Or the Lakers. It's the Sixers. Now that would be fun!!