I'm definitely addicted. I, too, work a lot at the computer...and I'm constantly hitting the "refresh" button! It's a little silly, and I do feel a little self-conscious when I look down and see that I've commented on the last ten threads...lol. Oh well. I don't post just to post. I post if I want to say something. No post-padding here...maybe I just like to hear myself "talk"
I've had some extremely unhealthy habits/addictions in the past, so relative to that list, I'm fairly comfortable with this one.