Just a thought, but...
rather than just add age (or whatever) to the existing profile, I think it would be nice to have a way to find other enthusiasts in one's area.
Currently, without clicking on everyone's individual profile, there is no way to do this.
Some of us (maybe just me) don't have alot of car-knowledgable/enthusiast friends. It would be of interest to me to be able to do some sort of query/search to see which other active members of this site live in the same city/state/area/whatever as I do.
Maybe, due to privacy issues, this would not be of interest to everyone. But there has been more than one occasion that I wondered how many other Chevelle enthusiasts lived in my town.
Again, just a thought...