If you are using the public "Send Feedback" tab on your site and your site has logged-in users, you can pre-fill their email address for your best users when they send you feedback.
To achieve this, add some extra JavaScript code in your existing BugHerd embed code:
Note: the "required" setting indicates whether the email field should be mandatory or not before filing a report.
In your server side code, substitute someone@example.com with a directive to insert the current user's email address.