I personally like the 42+ thing, and I take the view that anything over 42 is just “lots” and I don’t really care what the actual number is.
However, I do think it’s a bit much to force it on people. If they didn’t provide an option to toggle it off, I’d at least like (or prefer?) to see something like seanblue’s Lesson Hover Details implemented into the main site, for review number as well as lesson breakdown.
I also only feel so blasé about the 42+ because I have Ultimate Timeline, which I really think should be incorporated into WK proper.