Comment by Cider9986

I naively thought that Duolingo's gamification was for a good cause, helping you learn a language by addicting you, but now I know it's not only an extremely ineffective way to learn a language, but they're an advertising/social media/data broker company, which makes the gamification unethical.

I wonder if there are any other FOSS apps or websites with gamification that are for a good cause, like StreetComplete.