Or the original forum data crashes and all knowledge is lost. We know that is not always true, thanks to folks making big bucks in data recovery. Someone has to spend those bucks though and we cars guys are cheap unless it's our ride. On the impalassforum we lost years of excellent information. Server crashed & forum was sold. If you saved it to your own storage drive then all you have to worry about is your storage drive going belly up. It happens. I have a lovely aluminum Maxtor that is a door stop. Fortunately I had one back up. Between the backup and death all was lost.
The other possibility is the forum being sold and the archives dumped.
As a late participant, I've spent way too much time searching the forum for relevant information and storing it for my own use book of Solstice knowledge, tips and tricks. Very good stuff here and some chaff too. Never begrudge time spent on knowledge.
Lifetime membership is next.