Greg - have you ever been to the mornigton crescent (MC)
message board? Given that it is fully in keeping with ISIHAC and the bbc do not allow even veiled references to other websites, advertising and profanity (eg Cockfosters is always removed despite it being on the underground network). There is just the same personal banter and thread drift though to a lesser degree because there are far more narrower interest message boards. And far more & funnier nom de keyboards. But it doesn't have the mix of erudition and levity of this MC.