The action of replicating content from one TikTok post, such as a caption, comment, or specific text element, and then transferring it for use in another context, whether on TikTok or a different platform, is a common online activity. For example, a user might find a particularly witty comment under a popular video and reproduce it as their own caption on a subsequent post.
This function serves a variety of purposes, from expediting content creation and participation in trending dialogues to facilitating the dissemination of information. Historically, the ability to reproduce digital text has been fundamental to the growth of online culture and communication. This functionality makes it easier to react and adapt to new information and ideas.