Not so easy for me. On one hand, there's lokitrickster who was in Aggressive Youth starting in about 1988 or '89. But he hasn't posted anything in years and years, and I think the account is fallow now. He's the guy in the middle of my userpic.

OTOH, there's zachkessin, who was the second or third person I met at Brandeis who wasn't a camp counselor AIDE Group leader.