Yes, has having a user-defined difficulty level might be the way to go.
The main drawback is that it introduces conceptual complexity. It makes it harder for new members to understand what a streak is, how to get one, etc.
The credits where you can miss a day (or "streak freezes" as Duolingo calls them) raise some additional questions like how many do you get, how often can you use them, etc.
I might settle on having two streak systems. The current hardcore one (lose a day and it resets), and the more forgiving one (skip a day and it decreases by 1).
Yes, has having a user-defined difficulty level might be the way to go.
The main drawback is that it introduces conceptual complexity. It makes it harder for new members to understand what a streak is, how to get one, etc.
The credits where you can miss a day (or "streak freezes" as Duolingo calls them) raise some additional questions like how many do you get, how often can you use them, etc.
I might settle on having two streak systems. The current hardcore one (lose a day and it resets), and the more forgiving one (skip a day and it decreases by 1).