Not everyone gets the importance of free software at once. To me the point of no return came when I was using non-Intel Linux machines, and could not run any of the new proprietary Linux software on the Alpha host we had.
The Movable Type licensing term changes have done the same for a new generation. Dive into Mark's Freedom 0 article rings true. The same kind of feeling we had when we started the Gnome project, we decided to not look away with something that was `free enough'.