On: YC: There should be a way to prevent reposts

[bootload]

"... There is. Duplicate URLs are not allowed. ..."

There is a subtler variation on this. Two different urls resolving to the same article. A site may publish:

- http://foo.com/date/bar/some-inane-tech-article

- http://foo.com/date/some-inane-tech-article

Both urls point to the same article, both are unique but point to the same document. A quick example might be an article and the same article printed.

[bootload → bootload]

"... There is. Duplicate URLs are not allowed ... There is a subtler variation on this. Two different urls resolving to the same article ..."

Here is an live example I just spotted:

original ~ http://www.paulgraham.com/ycombinator.html ~ post ~ http://news.ycombinator.com/item?id=133430

dupe ~ http://paulgraham.com/ycombinator.html ~ post ~ http://news.ycombinator.com/item?id=134775

[bootload → bootload]

and another:

- http://thoughtpad.net/alan-dean/http-headers-status.png, http://news.ycombinator.com/item?id=134933

- http://thoughtpad.net/alan-dean/http-headers-status.gif, http://news.ycombinator.com/item?id=134236