The server does not save the key. You can store the key in the local storage of your browser (for your convinience, optional) and clear it.
Topics are used to start a discussion. Topics should be a statement or question, which can be answered with a yes or no.
It calls GPT-4 three times to generate answer from three different viewpoints. It takes a minute.
You can save the topic and responses to the database and publish it. After save it, you can get link to share it.