[lutusp]

> Scribd is a YC-backed company.

Well put. :)

> Every PDF submitted to HN gets auto-uploaded to Scribd.

Yes, except the link is to the original PDF, so the scribd tag is misleading.

[pauldino]

Although it looks like one the [scribd] bit isn't really a tag - it's a link to open the PDF in Scribd.