Just recently, actually. I’ve restarted learning a couple of times, so I don’t know for sure how it compares to the progress of someone who hasn’t walked away and restarted multiple times, but I strongly returned to studying right at the beginning of the year, and my first batch of burnt items arrived on May 30. I currently have a total of 60 items burned, 23 Radicals, 12 Kanji, and 25 Vocab. I am on level 7, but I expect to hit level 8 tomorrow. I only need to Guru one more Kanji to level up, and I am very confident that I will get that last item in the next 24 hours.
For a more complete history, I started WaniKani 5 years ago, and struggled to really get started with it, so I ended up starting, taking a break, coming back and resetting, etc, a couple of times. I reset in September of 2025, only managed to stick with it for a couple of weeks before life once again got in the way of motivation, but then returned on Dec 31 of 2025. This time around I felt a stronger motivation to learn, and it was a short enough break that I didn’t feel the need to reset yet again. Since Dec 31, I’ve only missed a total of 14 days of reviews or lessons this year, though some days were definitely far weaker than others.