I'm still a NASIOC member -even though I've been a Subaru driver, I'd say that 10% of members have never even owned one. It's a very diverse group to be sure.
I post over there occasionally.

My one complaint with NASIOC, and Subaru "enthusiasts" in general though, is the one-upmanship factor.
"I'm a better driver/tuner/mechanic..."
"My car turns 12s/11s/10s..."
It just gets old -everyone has something to prove, and despite a lack of technical savvy, many continue to throw money and parts at their cars in hopes of making them 500hp monsters.
It's not unlike a Jeep club in many respects.

You will rarely hear a NASIOCer ask for help with basic tasks, for fear that the "senior" members will crucify them for being "ignorant".