Why it worked
The video leverages a common designer sentiment (questioning the necessity of certain tools) and flips it with a surprising statistic, creating intrigue and validating the tool's popularity. The use of a popular reaction meme further enhances its shareability.
Summary
The video showcases the Mockup design tool, highlighting its extensive use by over 500,000 UI/UX designers daily. It directly addresses the question of who uses Mockup, implying its widespread adoption and utility in the design community.