So Starbucks says that we cannot turn away people who don’t make purchases. All that third place stuff. What my store does is if/when they come in to get a water or maybe drip coffee, we take their name. Once we get a name we can start connecting name to face and if they become regulars we know who they are - if they become a Problem regularly, then we can report the incident with their name. We had one person at my last store (downtown Chicago. Trust me, not good) who was actually banned by doing this and is being sued by Starbucks rn. You can ban a person if you have enough incidents with their name attached that you can bring to the DM. So that’s what we do.