remember: none of the metrics duolingo keeps track of have anything to do with language proficiency. it’s a game not a learning tool.
yes: duolingo > doing nothing
but: any alternative learning method > duolingo
they stay relevant through viral marketing, that is often objectively funny, not through efficacy. the idea is that if you want to learn a language, your first thought is to use duolingo. then if it fails, you blame yourself: it cannot be the case that the most famous language-learning product doesn‘t actually help you learn a language.
technically yes, but my comment wasn’t meant as a moral indictment against you :)
just a heads up: learning a new language is an amazing experience, just consider alternatives to duolingo first