I haven't used Instagram in years. This kind of interest/friend discovery feels kind of old fashioned and I like it.
The feature was first spotted by reverse engineer Alessandro Paluzzi, who often finds unreleased features while they’re still under development.According to screenshots shared by Paluzzi, people select their favorite movies, books, TV shows, games, and music, or their “Picks.” Instagram then finds overlaps with friends who chose the same things.