Let's face it, 24 hours of tasking (if you could get it to actually run that long without some kind of crash, too much zoning going on for stability), is equal to the xp of, what, 60-70 minutes in a good xp group? That's why they don't bother watching this one too closely. They pick their battles, and task macro is small potatoes. Of course, there is always the danger of a GM having a bad day.
On a side note, I have been seeing several new guides all over my server lately, including DL zone. Hardly ever saw a guide/GM on before, and now we get about 10 times the GM events going on. Kinda nice, but much more dangerous. Makes you look over BOTH shoulders before hitting that warp hotkey...