Gems recently have been devalued!
Noticed a recent trend in the ios mobile application. Originally after a goal completion, the user selected one of three chests for gem awards. These could be substantial. Then, an even better trend developed where if the user watched just one advertisement, then another chest could be opened. This resulted in even more gems.
Duolingo now has become cheap, dolling out a substantially lower number of gems.
Why? Were the rewards too great? I am being sarcastic!