Just on a general note, not macro related, but talking of "Advanced users":
It's used here in the sense that *I* use it too, but I keep getting shocked by the fact that on most websites today people are already called "advanced users" if they know how to unzip a file!! They'll probably soon be called "advanced" if they know how to switch on the computer, not just how to buy it in the shop... Poor world!
But while I'm here: Just today struggled again trying to block some giant images from loading, but simply no chance. Doesn't seem possible via css, even usercontent.css only hides them *after* loading :-/ Anyone know a solutions, preferably simple ones, without installing whole programs or such...?
From how I read this here, it sounds like only whole domains are blocked.