I just clicked on an E-Fare from DTW/CHI as if I was gonna purchase it. The following pop-uo box opens up as a warning:

<copy & pasted>

You have selected a basic economy fare. It includes:

Complimentary premium entertainment
Complimentary snacks, soft drinks and Starbucks® coffee
Available Wi-Fi
Award-winning service

Basic Economy comes with these restrictions:

No seat assignment is available until after check-in
Refunds and any ticket changes, including same-day changes, are not permitted
No paid or complimentary access or upgrades to premium seats or products, including Delta Comfort+™ or Preferred Seats, and no paid access to Priority Boarding

Terms apply to all customers including but not limited to Medallion® members and SkyTeam® elites

I agree to the restrictions
Do you want to continue with your selection?

NO mention of bin usage.