Brian continues to troll on the Sydenham Forum, but he has apparently lost interest in SE23 now that he lives in Beckenham. Although I'm not sure troll is the right word for the most frequent poster.
I think Cellar Doors also left the area, which is a shame. He was always a big fan of the Capitol.
But the contributors I miss most are Baggydave and Loneranger. But alas the forum has moved on since their time. I blame Facebook for the demise of anonymous discussions between people with nothing in common.