"Massive devaluation" refers to a significant decrease in the value or worth of something, often a currency, resulting in it being worth much less compared to other currencies or assets. Full definition
Unfortunately, the last couple of years, almost all major airlines introduced massive devaluations of their loyalty programs and award charts, making the mileage game less attractive as it used to be. (theluxurytravelexpert.com)
And there are plenty of reasons to be upset about loyalty programs: From massive devaluation of your hard - earned points to the elimination of perks without notice and broken promises, the airline and hotel loyalty programs don't seem to show much loyalty to their frequent customers. (dreamtravelonpoints.com)