Full Y2K vs. Y2K-influenced
There are two ways to wear this aesthetic. Full Y2K is the costume version — butterfly clips, frosted gloss, low-rise everything, head-to-toe 2002. It's fun and intentional but reads as a look, not a wardrobe. Y2K-influenced is the wearable version: one or two era signatures (a low-rise jean, a baby tee, a mini cardigan) mixed into modern clothing.
Most people building from a Pinterest board want the second one. The trick is to borrow a silhouette or a detail, not the whole pastiche. A low-rise wide-leg jean with a plain fitted tee is Y2K-influenced and looks current. The same jean with butterfly clips and a rhinestone choker is full costume.