Trip Feedback can be disabled in two places.

You can disable Trip Feedback for all upcoming trips in your account settings, and you can disable Trip Feedback settings for current trips in the trips themselves.

Click on your name in the top right corner, and then on Account

Then click on the Settings tab in the bottom left

Uncheck the box, and that will turn off Trip Feedback Requests for upcoming trips!

To re-enable Trip Feedback Requests for all future trips, simply click that box again until the box is checked.

Clicking on the trip in your home page will bring up the Trip Sidebar on the right-hand side.

This will open the Trip Menu, and you will be able to enable/disable feedback requests.

Note: Changes to feedback settings can be made up until the day before the last day of the trip.