Does WaniKani compile aggregate stats across all users? I think it would be interesting to see things like a ranked list of most-failed items, average and standard deviation for level-up speed, that kind of thing.
Interesting in a curiosity sense, I mean - I don’t think I would change anything I’m doing, but it would be fun to see. I’d be surprised if, behind the scenes, there wasn’t already such a thing though. It could help identify if particular mnemonics weren’t as effective as others. For high-failure-rate items, it might be worth figuring out the most common failure mode and putting a note in the explanation. I just saw in the forum elsewhere a good tip for remembering the difference between 夫 and 末, that kind of “key points” tip would be good to put right in the lesson if a lot of people are making the same error.
Also, just knowing I may not be the fastest, but that I’m solidly in the middle of the bell curve, not the worst, might be a little helpful with the motivation