I’ve just started WK to revise some kanji I haven’t covered/used in a long time. I’ve got a degree in Japanese already. The feeling I am getting from reading some of the forum posts are that levels later down the line are seen as ‘harder’ than levels covered earlier.
Why is this? Why would I expect say Level 50 to take much more concentration and time to complete than say Level 20? Or do different levels not take longer really - are they all supposed to be generally the same difficulty and it’s just that by Level 60 you are bored and want to kill yourself from doing reviews? I’ve browsed some of the kanji in the later levels and to be honest there seems an even spread to me across ALL the levels of some I may or may not know. For example I’ve just seen the kanji for arrival 到着（とうちゃく）is in Level 50 something, when it’s a basic kanji/term in Japan (or at least it is to me). Equally some of the kanji in earlier levels seem to me to be quite difficult ones in that they aren’t necessarily commonly used terms/words.
This is not criticism of WK - it is genuine curiosity. Obviously my case is that I probably already have a large amount of difficult kanji/readings/meanings stored away somewhere back in the deep dark memory box from many years ago when I did my degree that pop up to me in a gut instinct way. Because of this maybe some of the kanji I think seem ‘easy’ in the later levels are not actually that easy if you’ve never seen them or used them before.
So have you found WK much harder the higher level you go and if so why?