[ricardobeat]

It is different in that a completely unrelated third-party can pin this content of their own volition, and it will continue to be provided under the exact same address/hash. In the web, the domain owner is the single entity who can ensure survival of the content.

[zaarn]

Torrents do the same thing. Dat also does that. Even better in either you don't have to think about pinning. Why should IPFS be the one?