As long as you don't have control on which files are stored on the machine, they'll need to sue the IPFS protocol inventors, good luck with that.
I the meanwhile, let's just have fun and leave these dark thought behind ^_^
In this sense IPFS is just a transport protocol. Hosting illegal metarial over it is not inherently safer than doing the same over e.g. Bittorrent.
It's enough to go after the endpoints. Which is actually easier than with HTTP or Bittorrent because it is really hard to properly proxy and run IPFS without inadvertently leaking metadata. Being able to run IPFS anonymously over e.g. Tor has in the past been referred to as an anti-goal by maintainers[0].
In practice today even that's probably not necessary, just go after the top 5 or so public http bridges like dweb.link and cf...
[0]: Anyone aware of alternative implementations or forks with a different stance on this?
If you indeed have obtained a license allowing you share binaries of games like Mario Kart, Advance Wars and Final Fantasy VI Advance, I assume you also need to provide a copy of that license, and sources upon request.
So unless that is just a blatant lie, please also share the licenses and sources.
...Got any browser 0-days to share while you're at it?
IPFS really needs to move to a darknet. It's a major privacy issue when it's possible to see which user has a file cached (e.g. has used the file).