Comment by needle0

Losing a Sojourner medal streak in Ingress (due to being busy due to my own wedding!) made me quit playing the game regularly. Streaks can be effective in keeping the user returning, but once it's broken it can be a perfect moment for the user to churn. Hence, I can understand how the Duolingo devs made the streak less fragile than it would initially appear, but doing so (and having the cover blown) also makes returning to the app not as urgent...thus less effective in preventing churn. Huh.