If you can read this, you're in the right place!
Update 2021-12-13: Patience please! None of the archive data is lost. It takes a while to unpack ~500GB of shitposts, believe it or not, so the archives are being backfilled by year. 2015 is unpacking right now, as an example, followed by 2014 and so on. You'll get the 'requested URL was not found on this server' generic 404 on most older threads until then. I'll announce when the unpacking is complete; THEN you can start reporting missing threads.
... and please for the love of fuck TELL ME THE THREAD NUMBER WHEN YOU DO GODDAMNIT
Update 2021-12-14: So there's a handful of completely arbitrary threads missing on the new server, but they're safe and sound on the old server. I'm going to write a script to test and rsync every entry in the database to ensure the gaps are filled. In the meantime, go ahead and keep reporting threads, I appreciate it. (PS: For those of you sending messages on Twitter, I'm still banned for a couple days for telling someone to 'fuck off a cliff', which apparently is promoting suicide, so I can't reply to your messages. Sorry!)
Update 2021-12-17: I've found additional problems and fixed them. For instance, there were a lot of threads that didn't get updated permissions after transfer, so they were just 403ing; they should all work now.
I also realized that the new thread schema - /archive/year/threadnum/ vs. /archive/threadnum/ - broke every URL on the internet linking back to the site. Oops! My bad. I added a little .htaccess and PHP magic to properly redirect requests still looking for the old URLs. Your bookmarks and TV Tropes links should work again, hooray!
One of the remaining orders of business is to fix the SSL cert, which I'll do Saturday or Sunday, depending on whether I die in the upcoming blizzard. As usual, if any threads aren't working right, please leave a comment below or contact me on IRC/Discord.