Thanks CIA, I will gladly make the servers glow by announcing the IPs via DHT.
I had a longer, drawn-out reply, but I will say this instead.
We used to do easy public archives, but the infrastructure grew more complex, bandwidth got more sparse, and the data got too big. I will not advocate for Kemono@Home because it implies constantly broadcasting pirating IPs to untrusted nodes. IPFS is cool but unproven tech that is likely to be a headache to support at this point, unless tooling to quickly and easily process the dataset exists. No one on the team really wants to do such a thing manually.
For now, if you want to download a few artists, boot up Python and look at KemonoDL and GalleryDL. If you want to preserve the SQL database, start at kemono.party/dumps.