[Tomte]

What's vouch? The opposite to flag? Available to hand-picked users or is that based on another karma level?

It's always fascinating to learn about mechanisms I've never even heard about, either by such comments or by dang's mails telling you to do X.

[gherkin0]

I was curious too, and I found this post explaining it:

http://blog.ycombinator.com/two-hn-announcements