I was there a bit. I remember some of the same coded language used here - CTB, N, etc. It was not that different, perhaps a bit more muted because of reddit rules.
I remember talking to a user on there named 2_0_0_6. I think they eventually became a mod on the subreddit. Last I checked their reddit profile, they were posting about opiates and then went inactive for years. I hope they found peace one way or another.