I really like reading blogs of hn members. I usually click on their name to learn more about them and see how long they've been here (and to see if they became a member just to promote their blog).
"168" jumped off the page. The universe must think you're on to something.
And having 168 karma (the number of total hours available in a week) is no coincidence. I of course plan these things out well ahead of time. That's very observant that you noticed though.