Yeah it has been happening for a year. I think it wasn't Internet Archive but archive today or some other site. It's cos one of the troons has an uncle that runs it, or Taylor Lorenz has uncle. Someone has an uncle.

I'll try and find more concrete info but it would be in the Keffals thread most likely (KF down right now)

EDIT:
https://www.theverge.com/2022/9/7/23341051/kiwi-farms-internet-archive-backup-removal

It was Internet Archive and apparently Wayback Machine (source is Keffals in article though, well-known liar). If you need more I can try and find the telegram post mentioned in article, which they mentioned but failed to include.

EDIT2: Taylor Lorenz is likely the uncle-haver https://www.foxnews.com/politics/taylor-lorenz-tweets-unavailable-on-internet-archive-amid-libsoftiktok-doxxing-backlash