So no, I've never used it and I never will. I've lived this long without it, so I don't see any need to start using it now to satisfy curiosity, especially if it's going to get in the way of forum usage.
Perfect summary, I think. I have no idea what the context bar is but I'm assuming it's just the annoying shaded bar at the top of the page? In which case I'll go turn it off now, thanks for the advice hehe.