Joined in 2006 and been playing somewhat regularly since then. It is too bad what Facebook has done to many of the great airsofting communities of old including Arnie's but also places like Airsoft Canada and my own local forum. Arnie's was truly a great community back in "the day" with all sorts of characters - TheCrunchBunny, Sledge, Stealthbomber, Magz, MasakariJoe, Titleist, DarkLite, CKinnerly - some of whom are still around. The days of the "Clone Wars" where a new replica was released every month and the forums were filled with people posting the latest build trends (Art of Tactical Carbine!) have sadly passed us by.
There's a lot to be said for the convenience of Facebook and while the 101 airsoft groups on it are great for some niches (Gothic Serpent kit, early GWOT kit, Polarstar Owners Group, etc) there's a big hole when it comes to having one cohesive community.
edit: Is it actually possible anymore to see a full members list for Arnie's?