While “收到” is a functional word, its usage reflects an important aspect of Chinese communication culture: clarity and accountability. In a professional or even a casual group setting, explicitly confirming receipt of information with “收到” is considered good etiquette. It's not just a casual “k,” but a clear signal that closes the communication loop. It tells the sender: “Your message has reached its destination, I am aware of it, and you don't need to follow up to see if I got it.” Compared to the Western use of “Got it” or “Received,” the Chinese “收到” can feel more formal and almost obligatory in a business context. Skipping this confirmation can be seen as slightly negligent or as leaving the sender in limbo. It reinforces a subtle cultural value of collective efficiency and ensuring everyone is on the same page. A simple “收到” provides assurance and respects the sender's time.
“收到” is ubiquitous in modern communication.