The capability to identify individuals in a Facebook publication retroactively refers to the action of associating a user’s profile with a post subsequent to its initial creation and sharing. For example, if a user publishes a photograph of a group and later desires to connect the profiles of specific individuals to that image, the user can employ this functionality to link the relevant Facebook accounts to the post.
This feature serves multiple purposes, including increasing the visibility of the post among the tagged individuals’ networks, providing attribution or context within the content, and facilitating engagement. Historically, this function emerged as a means to enhance social interaction and networking on the platform, allowing users to connect digital content directly to specific individuals.