I know we knock the dealers sometimes but I remember reading about the DSC when my 'ol 996 was in for a service 3 or 4 years ago.
I was sitting in the waiting area they used to have by the showroom door and saw a DSC poster next to the coffee machine, read it and then picked up an application form off the coffee table.
As I said before I joined up in 2001 but didn't bother in 2002 and don't know why. Finding out about the discussion board probably revitalised my interest so re-joined in 2003.
Found the Club via a poster in my local dealer and followed up the web link (eventually). When I encountered the Message Board ... well ... it was love at first sight