No, they did not. But this one this, also a form of scrapping https://www.reddit.com/r/mangago/comments/pdflgv/script_for_backing_up_reading_lists_v10_release/
just re-checked reddit there's also this script https://www.reddit.com/r/mangapiracy/comments/1qqqoyd/i_made_a_script_which_can_backup_all_your_manga/
Omg I just had the scare of a life time…. I was doing it and then all of a sudden it stopped and on mangago it said “this person has canceled your account” and it stopped working. And then I tried to log into my account and nothing was popping up It was just sending me back to the homepage. I literally thought that they canceled my account because it was like causing too much overload in the site or something. Yeah I’m just gonna take it easy for now
( ̄… ̄")
Tried out the second method, cause covers are an important part of how i identify the stories. Had the error where it appeared as data:image. But i had also accidentally copied the same story twice and disocovered that the same story with the data:image error didnt have it on the copied version. So for people who have this error as well, I reckon that if you retry it you should get the correct version link of the cover image! Haven't tried it out yet but considering how the 2nd version was correct, it should in theory work!
Okay, I've tried it out and it works for me. If the cover image link is still showing up as data:image, i found that clicking on the manhwa and then going back AND THEN you click start scrawling, the link becomes the https one. For me, refreshing the page doesnt work but clicking on and then going back works.
Also don't be like me and downloading the whole table each time, you can just copy the link into the table you made the first time around (i'm not stupid i swear, just very very tired)

is there anyway to save all the lists...