It's okay, a little smack on the hand is just what I needed. I have no idea what's brought so many new users (I just came to find talent and advice for my startup), but as long as it's a temporary influx, the new users will settle down as they usually do. A short period of bad behavior from inexperienced users is just a growing pain for any healthy organization, and since the community (and Paul) have dealt with it so well, I have little fear that growth will turn Hacker News into Digg. For instance, I know now not to cheekily mock Paul in his own thread, and probably not to write a single thing after several black-and-tans.
That said, members who wish to preserve a community's original quality should be proactive. They may have to replace the functions of some other original members who have left. We call this "culture."