I'd suggest doing it. I just started streaming on twitch like 4 or 5 days ago. I figured if I'm going to be playing anyway, might as well. It took me all of 2 hours to get everything setup and going and I knew nothing about it going in. I'm sure my guild vent on Friday and Saturday nights must be at least semi entertaining after all the adult beverages if nothing else.
Exactly what I was thinking. Even if the game play isn't always entertaining I know the conversations will be. Plus we normally do pretty well with our 2-3 man premades in regular WZ's (I wouldn't stream the little bit of rated we do) and we also run ops a couple times a week so maybe it'll be informational for a few people who are having troubles with tactics.
I know you saw the thread I started too... would like to show off our 2 man sorc wrecking crew that me and my boy have been running. It's so damn fun to play that I would hope it's somewhat fun to watch.