With no single famous source attached to it, this phrase has become a reusable piece of online audio because the sentiment is universal and instantly understood. Creators use the short clip as a ready-made closing line when they want to thank an audience without recording their own voiceover, and its brevity makes it easy to drop into edits, streams and social videos. It stays useful because gratitude never goes out of style, and a two-second thank you fits almost any ending.