This phrase is a common casual Indonesian way to thank someone for following an account, and it circulates online as a short soundbite rather than as a line from a known film, song or show. Creators reuse it because it is instantly understandable to Indonesian-speaking audiences and fits neatly into the fast pace of short-form video, where a brief spoken thanks can acknowledge support without stopping the content. Its continued use comes from that practical, friendly function in everyday social posts and streams.