How do I delete highlighted comments?
Usually I can delete mean stream comments by clicking the trash can icon that appears next to them. However, highlighted comments don't have a trash icon. Clicking one makes Kangel read it out at the end of the stream instead.
How do I delete highlighted comments during a stream?
Highlighted comments cannot be deleted. They represent superchat donation messages. You can only choose whether or not to read them at the end of a stream.