I kinda want to do this and also go back to IRC. Some of my happier moments and interesting conversations were on IRC. My best friend who eventually became my husband was met on IRC. Good times.
I was never really on the IT channels, so that wouldn't do it for me. I was big on #ProAudio (back in the days when I did that for a living) and #Atheism and #Indiana to meet local people. Nobody on any of those channels on any of the nets I used to be on, if those themselves even exist.