Reply To: Blog author and icon

Hello,

1. The author is the user which logins your site and create the post.
2. WordPress does not provide such options.
3. If you want to disable icons and author navigate to Theme option > Blog you will find the options.
4. If you want to change icon for other from https://fontawesome.com/v4.7.0/icons/ I will provide CSS code.

Best Regards