Responses
mnggo is restoring them in chronological order, starting from the earliest saved manga of the oldest accs and moving forward. If your acc or saved mangas are later in that timeline, they simply havent been reached yet. but they will be back, dont worry. :)
Read the FAQS and explanation here
https://www.mangago.me/home/mangatopic/21080691/
As for the concern about site exposure:
https://www.mangago.me/home/mangatopic/21014248/
Guess I'm a young'un since I still don't have my lists back