All Articles for Tag
World of PUG Blog March 31, 2026
Duolingo Is the Most Dangerous Case Study in Loyalty
Every loyalty team in the world has a Duolingo slide in their deck. The green owl.
World of PUG Blog March 23, 2026
The Most Powerful Loyalty Mechanic Isn’t Points — It’s the Fear of Losing Them
In 2023, Starbucks let its Gold tier quietly sunset. For seven years, millions of customers walked