Answer:
To avoid spam, hate messages, etc.
But, this is weird as you can have unlimited comments.
What is this mainly about and is this history
The correct answer is using a combination of humility and humor.
Explanation: This would be a way to show that the event is special, it will also make the audience feel special. In this sense, this type of introduction helps people to feel closer to the speakers because it is easier to connect with someone who seems grateful.
