I think they're targeting this at the kind of people who are almost happy to donate money to MDN just to see it continue. The exclusive content just seems like

I think they're targeting this at the kind of people who are almost happy to donate money to MDN just to see it continue. The exclusive content just seems like a way of pushing would-be donors over the edge. It's sort of similar to LWN. The articles are top notch but available for free after a delay (likewise, anything truly useful on MDN+ will leak out on to other platforms). People who subscribe to LWN just want to support the efforts and make sure the content continues to flow, they're not really concerned with the exclusivity of getting it first.