I don't think it's that hard for non web developers. The rule is commtext { color: black; }. I think that adding an option (like showdead) would be better, as it doesn't require people to take the time to find out by themselves. Again, your comparaison doesn't really hold.
> Being inaccessible on purpose doesn't change the fact that it's inaccessible.
> Being inaccessible on purpose doesn't change the fact that it's inaccessible.
It explains why it still is though.