Originally posted by Freedon Nadd
1. Lord Vitiate was forging his True Sith Empire,but he was afraid of Darth Nihilus,given the fact he had spies all over the,galaxy.2. Nihilus can consume a star system distance,it is wrote in KotOR II he devoured countless planets,and it was in a short time during the game.
3. Who would not be afraid of Nihilus,the Grim Reaper of Star Wars Universe!?
4. The whole thing Traya was scared of Vitiate is pointless,prior that time Vitiate was not even created,so there's no reason to debate further. Traya made that reference of Old Sith to Marka Ragnos,Naga Sadow,or Tulak Hord,these are,you can know this when he tells you about them on Korriban.
Whether if it was about Nihilus' raw power,or military power,or dark side Sith knowledge it is unknown,the last two are more "credibile" as a source to Nihilus.
5. At least Nathema was visited by Scourge and Nyriss,there was still a "habitable" planet,but Katarr had devoured even its atmosphere and its oxygen by Darth Nihilus.
Source: Remember when Nihilus walked on the surface of the Katarr,Visas Marr was fainted,which indicates the loss of oxygen. Given the fact we know that it was not used any bombardment,only Nihilus' pure raw power.
Conclusion: Vitiate was truly afraid of The Lord of Hunger,and that was another main reason he remained hidden in the exile to make his empire stronger and ready to crush the Republic.
Note: Had Nihilus ever roamed over Dromund Kaas,he would have devoured the Sith Emperor and his Sith followers. With the power gained from Vitiate he would have rendered the known galaxy to the greatest Wound in the Force ever seen.
Vitiate is powerful,but not quite a "top-notcher".
Man you wank Nihilus hard.