I've seen people use Live in so many different ways. That's one of my favourite things about it, it allows you approach things in new ways. I used to use session view mainly when I started out with it, but these days I use the arrangement window more. It really depends on what I'm trying to achieve. I've found the session view useful for a number of things, ...
The Session View makes most sense when you are using a dedicated controller like the Push in order to trigger scenes.
to see someone using a Push controller to build up individual clips, arrange them in scenes, and then play through the scenes.
It is an interesting question. I worked in film music for nearly 30 years. We always called them MX, DX, FX. My assumption is it started with effects, as FX sounds just like "Effects" from there it found its way into music and dialogue. Also, in music we have used the "VOX" for vocals for as long as I can remember.
I've been a member for around 4 or 5 years now and live in Germany but used to travel regularly to Los Angeles for business.
From my experience they do offer some great events (or at least did, last one I attended was at TODD AO in Santa Monica in 2008 or 2009 I think, no idea about more recent ones) and it does connect you with people but most of these ...