There's no point in pulling everything from the manual and "skill trees" to overload the description. Those who are meticulous will look into them themselves.
What about obvious errors? The description of "Education" says it only affects experience gained from battles, "Master of the Land" talks about an earthquake and doesn't mention the crystal or the wall of swords. Or, the ability of the Thunderlord says that the damage depends on the number of victims, not the Thunderlords themselves.
It's not related to the topic, but still - do you know if "Devil's Strike" always had a 30% chance and an incorrect description, or only in Tribes of the East (like "Storm Wind" / "Fog Cloud")?