> Imagine a friend you were on a weekend trip with. This friend talks with another common friend. This common friend could have equally well been on that weekend trip because you like him or her but, due to circumstances, as is life, you did not invite him. You probably would feel uncomfortable with that first friend talking about that trip as if it was the most awesome trip ever, that everyone had non-stop fun and now everyone who was on that trip are best friends for life.<p>I feel like this is an issue one just has to grow up past. Walking on eggshells and deception so as not to hurt anyone's feelings is an annoying way to live. (I preach as a sinner). Related: <a href="https://www.theguardian.com/wellness/2025/apr/01/fringe-friend-benefits" rel="nofollow">https://www.theguardian.com/wellness/2025/apr/01/fringe-frie...</a><p>As to Zuck's machine having your information, yeah I can imagine if they bothered, they could see that there's always a person or two in all the pictures that aren't associated with any of the faces of the accounts, it can also determine what the friend groups of this person are. Probably even determine their wealth by their clothes, accessories, vacation locations, house ("Oh 5 users are gathered in a particular geolocation that is none of their houses [which we know about because 95% of the time a phone returns to a particular geolocation at night], and we can see from the photos that that 'unregistered user' is with them", that must be this user's house. Oh he lives in this neighborhood, that has a median income of EUR xyz. A reverse lookup of addresses we have because online shops upload their customer data to our system determines that one of the people living in that address is named Wouter Janleys, and from the shopping data he likes, amongst other things, mid-range to expensive wines.".<p>I wonder if they can even advertise to you through your friends, hah, that'd be a feature improvement for a Facebook project manager. Start showing your friends wine ads a few weeks before your birthday (as well as "It's Wouter's birthday in a few weeks" and "Remember this photo?" which is a photo of the group with glasses of wine)...