pg (or possibly another admin these days) will remove the create-account functionality if HN suddenly becomes very popular, as with the LinkedIn thread. I'm trying to find one of his comments where he mentions this, but there are 8,511 to wade through, and the obvious searches haven't found it yet.<p>edit: I may have misremembered; the first reference I've found was <a href="http://news.ycombinator.com/item?id=3481174" rel="nofollow">http://news.ycombinator.com/item?id=3481174</a>, but I'm still looking.<p>edit: Gave up looking. I probably don't know what I'm talking about.