I’ve shared my thoughts on this before here.
In a meeting with Airbnb last year, they mentioned they hadn’t used it for years.
The problem (in my experience) is it tends to force people through a narrow tunnel within the community instead of figuring out what are the best contributions people can make to the community and encourage them to make them.
It assumes people will continually increase their level of activity when in practice most lurkers, for example, are happy enough just lurking.
I think the principle (people can become more committed to a group over time) is sound (although prone to survivor bias in some cases). We’ve had some data that suggests people do participate more in the community the longer they remain a member (at least up to a certain degree). But this is only from those who were active from the very early days.
There is also a challenge in how to execute a commitment curve. Most of the writing I’ve seen on this shows how it can work in theory rather than how it has been executed in practice. i.e. how will you identify who is in each group? How do you communicate the next steps to them? How will you know if they have taken them?
This requires either a lot of tech development (costly, fiddly, and only possible in certain platforms), using autoresponders (<20% open rates and far lower click-through rates + dozens of unique journeys), or doing cohort groups and ignoring whether people take the actions or not.
However, if anyone knows someone who is successfully using it I’d love to join their community and study it. I’m very eager to learn about contradictory examples here from @Carrie_Jones or anyone else. I know it’s a popular tool so I’d love to be wrong on this one.