Whether or not your lists come back doesn't matter. The site is still unstable and if you add stuff it might disappear.
Earlier I talked to someone who added a title and it was gone the next day
Earlier today two people were adding stuff to their album and the site glitched out so they both lost everything they added to their albums at the time
Just sharing as this is evidence the site is still not stable enough to mass edit your lists
If you're going to recover stuff to your lists, do it off the site. Do it in a spreadsheet or mangaupdates
If you have any questions consult the FAQ
https://www.mangago.me/home/mangatopic/21255174/
from what i've heard, it's want to read, reading, read, comments on those, and then comment sections and notes on other things as well that are going right now. lets just put it this way. until the all clear is given, it's really best to just bookmark your stuff using google, firefox (browsers) or a spread sheet. because there are other glitches happening as well, that i'm not even fully sure what's going on anymore. because still waiting on reply from devs that's not an auto reply of the first glitch about the lists.

Guys should I just add manga back into my lists? Bc someone told me not to until my lists came back but I genuinely don’t think that they’re going to