[WJW]

As long as you bother to pin the content of course, otherwise you have to hope that someone else does. But if you have to store the data yourself anyway, why not go even simpler and store the content in a folder on your hard drive?

[immibis]

That's the point: if you want to put the website on your bookshelf, you can pin it.

Storing websites on your hard drive tends to break URLs; content addressing solves that.