What?

This is a social bookmarking site - do you mean you have a problem with the links you have posted? Stand up and be counted my friend!

I think the question is more along the lines of how long IPs are stored for logged in users, etc.

It's a valid question, especially for a site that seems to respect the privacy of its users (it doesn't even require an email address to sign up!).

In addition to IPs, the "email" field in your profile isn't publicly visible.

Good question, HN has grown so big and I'm concerned about private data of members as well.