Delta devalued SkyMiles awards twice during the pandemic and now calls it a sale when they offer 350,000 and even 400,000 mile-plus business class roundtrips to Europe. They’ve also gutted international upgrades with top elites getting confirmed from coach to premium economy only and no longer business class.
The other shoe has dropped at the reverse end of the spectrum, mileage-earning on the cheapest fares. For new tickets purchased (as of December 9, 2021) and travel starting January 1, 2022, Delta’s basic economy fares will no longer earn miles or elite status credit. Period.