The Profile system manages user profiles and attributes. Profiles only contain the user's name and image. Attributes are stored in the Profile Attributes collection, which includes both single and list values for things like gender and affinity. The Profile Bucket Meta is a collection of attributes that discourages single attribute read-write and instead uses buckets. The system is designed to provide personalized experiences and support multiple use cases. Two different collections, attribute metadata, are used to support onboarding of new attributes.