I have most of these

In the early 2010's I used to download YouTube videos to watch on my commute, and I still have most of the lost Tats ones on an SD card. The article is a little vague about exactly how many of the "lost" videos are just private and viewable on Tats' Patreon, so I'm not totally sure how "lost" what I've got actually is.

If Tats has said they don't want their old stuff uploaded, then I'd like to respect that by not just batch uploading it all against their wishes. I also don't feel great about uploading something that's not really "lost" just to get around a paywall. If any of these are particularly noteworthy or genuinely lost, I'd probably be able to provide copies for posterity - I don't have all of them, but I'd estimate about 70-75% of them.