In a screenshot of an example group chat, “Momma Chloe” asks this — presumably because she doesn’t have most of the messengers’ numbers. The FTC is making the point that iMessage users don’t have profiles that automatically populate if a user doesn’t already have someone else’s info — making it different from the social apps Meta runs. It’s a bit of a painstaking line of questioning for anyone who already uses iMessage regularly, but it’s driving home the point but the app is distinct from a personal social networking app.