If you pin on Pinterest more for your needs than to get followers, this is a faster way to pin and keep your pins all organized rather than pinning one item to the proper board all the time. It’s also “quieter” because only your followers who follow one specific board, or every board, will see what you’re pinning. But if you were pinning primarily to get followers, and would want as many people to see as many pins as possible all the time, then this isn’t for you.