Dunkin’s nailing Gen Z marketing through a spider donut on Instagram  The team behind Dunkin’s Instagram is clearly focused on luring customers into stores to try the seasonal spider donut, affectionately known as Spidey—but their method is capturing a lot of attention. While initial posts were lightheartedly funny, writing things like “im in charge now,” they soon escalated to chaotic Gen Z-esque captions like “if u aren’t afraid of spiders, ur gonna be” and “YA GIRL SAID IM NOT SO ITSY BITSY.” (The post with the latter now has nearly 900 comments.) YPulse has been telling brands that mirroring...