I think the review items you’re accumulating are just a result of the pace you impose on your own… after something like a month of not adding any lesson, my reviews went down a lot, I’ve keep doing my lessons at a slower pace and that hundreds of reviews haven’t been an issue anymore.
on the burnt item system… well yeah , it’s an illusion. But actually great thing that exist, specially given the intervals on WK keeping those items forever would add a great workload in the end. Like leebo mentioned, you’re supose to do something with the kanjis you learn… it’s a use it or loose it thing.
On a tangential topic. Few days ago I was watching a video by one of the guys promoting the AJATT method of learning (yeah, the one talking shit against WK), and he admittedly told that his proposed method for learning kanji (RTK1) left people with only a blurred image of every kanji in the end… that could only be cemented by immersion, and why not doing RTK again when massive exposure had crack in some time later (basically much more vocab was attained).
So in the end, it’s not a flaw in the system… they (WK / RTK) are kanji awareness tools, nothing more or less.
I’m considering doing RTK (more suited for writing) after WK. No plans of burning all items once I reach level 60 either as personally I hate WK early intervals too …
In any case, I think you’ve reached a very high kanji base, so changing your routine (and ditching WK) it’s nothing terrible either.
I would love to see you posting and telling more about life without WK and cons / pros with another kanji routine afterwards.