[krapp]

>If we had the means, should the web as a whole be append-only?

I'm going to go against the HN zeitgeist and say no.

If I have the right to publish something to the web, I should also have the right to edit and delete it if I so choose.

[celeritascelery]

You do have the right to delete it. And others have the right to make a copy before you do.

[krapp]

That's fine, but that's not the same as the web being "append-only."