Marumori was just a random comparison as it was the first thing that came to mind. The same thing applies to many other apps and services and (as you pointed out) Bunpro itself in the past (possibly even now). The part of my post that I deleted was talking about how lifetime memberships for language learning services are, I assume, financial viable for businesses as all the wide-eyed beginners who never actually learn the language make up for the people who actually use the product for the 3-5 years it takes for them to hit N1. As such, the quality of higher level material is either neglected or it simply doesn’t exist. Writing high quality N1 material is difficult to begin with anyway. My criticisms here still apply to Bunpro as it currently is, by the way, as the N1 material is probably the least polished. For me this line of thinking actually started with Wanikani which I think is bordering on Duolingo levels of predatory and Wanikani is definitely a “complete service” so my criticism isn’t dependent on how complete or incomplete the service is.
At the end of the day basically all of these services are re-inventing the wheel to some degree so there is always a question of “how is this financially viable”. Many language learning services seem obviously non-viable from the perspective of long term growth and the ones that are viable are still trying to make money and the easiest way to do that is to fleece beginners. Something like Marumori is clearly doing this in my opinion by offering fairly expensive lifetime memberships for a service that is nowhere close to being finished and is of no value to someone who isn’t N5. Although I think Bunpro’s model probably works the same way they actually have that higher level content now which is a big big difference. I hope Marumori achieves their goals in 5 years time as well but I am just talking about the reality of what exists now. I didn’t really want to start an argument about business models as it is not really relevant (although I accidentally did, sorry) hence why I cut part of my original post out.
100% agree with this.