What? That's the laziest argument against IPFS. Bind it on one interface or just use a VM.
And no, I dont my whole internal network enumerable because of 'convenience'.
It takes very little to set up IPFS to just listen to tun0, disable routing (let ygg do its job) and throttle the bw a little so it doesn't hog the whole network.
I would be surprised if the Kubo/IPFS developers didn't already configure Ygg for themselves, as both are software written in Go.
The author of NNCP https://nncp.mirrors.quux.org/ (and the other author from Tofuproxy) are pretty much aware of Yggdrasil.