Guys really please cut it out about "threat" on a paladin vanilla tank.
I played my spec pretty fucking decent. I was the first and only tank on my server back then who tanked Onyxia. I tanked a multitude of mobs in the open world and even in dungeons.
What people do not seem to get is how the vanilla paladin tank was generating threat.
What did happen:
1. paladin puts on seal of fury
2. paladin judges seal of fury
3. paladin uses consecration
4. paladin puts on seal of righteousness
5. paladin judges seal of righteousness
6. paladin puts on seal of righteousness
7. paladin judges seal of righteousness
8. paladin puts on seal of fury
9. paladin judges seal of fury
etc
What people did wrong here is to put on seal of fury then judge it, then kept on resealing and judging seal of fury. This was also due to the tooltip of seal of fury. It presented itself as a great agro tool. Which it only was when judged.
Hitting a mob with Seal of Fury did next to nothing in terms of threat. Holy damage on a judged mob with fury on it.... THAT created threat.
Look at guides from back then on whatever fora you can find. If you come across a well written one, it will state that once a mob with fury on it, gets hit by a full consecration... it would be next to impossible to agro off the mob.
Therefore paladin tanks in Vanilla had the single greatest agro in the game. But due to mana issues and itemisation... they were not viable.