From time to time, Zhihu broke the rules and asked you to send text messages. What happened to unsealing them? Is it to earn SMS fees?

That was not the case. At present, Zhihu is very strict in examining questions. There should be no advertisements, rumors or even fraud in your answer. If similar suspicious problems are found, Zhihu will block your account. And warn you.

Of course, if you have different opinions, you can give feedback to online customer service and ask the other party to unseal it. Zhihu will unseal your order number in time after it is approved.