I wish i had that problem (;-;) I had close to if not + 4000 mangas in total over want to read, reading and already read.
The only that have gotten back is 5 on the already read, the rest on my page currently is those that I manually found again. And I believe those 5 are the only once I ever tagged.
All I have as a comfort till they hopefully can restore everyone’s pages, is a few lists that I made years ago. Sadly non of my currently reading is on those lists :( and how am I supposed to remember 300+ mangas (yes I’m to blame for reading so many at the same time I know ( ̄∇ ̄") )
Hopefully the tagged once getting back to some people is only the first step to complete restoration (๑•ㅂ•)و✧
#trying to be hopeful
They all had at least one tag from years ago, I would always put at least one so I’m pretty sure that’s how they were able to show back up, they were just in the wrong category for listing. Buttt, I’m sure the devs were gonna fix it eventually I just took the time to place them all into already read

I was lwk bamboozled, when my lists were slowly getting added I realized 100% of my “want to read” list were actually things i’ve already read… it was up to like 18 pages or something. And yes, I manually placed them all back it was painful to look