Gen Z Channels the 1990s

James Abraham, 35, who runs the popular Instagram account @90sanxiety, which he started in 2016, sees the intrigue as related to the sense of something uncompromising about the period — the “rawness, the realness,” Mr. Abraham said. “‘Purity,’ that’s the keyword.” ‘Hot and Unbothered’ In the ’90s and aughts, Ms. Northman said, people seemed more…