Thread:NickFusi0n/@comment-4050367-20140216232023/@comment-5163958-20140217054712

THAT EXPLAINS EVERYTHING. Sci loved watching Bill Nye, and when he was told that it only had 100 episodes, he was devastated. So, when he was creating an username on Wikia, he decided to name himself "Sci100", as tribute to his passion for Bill Nye the Science Guy, and its 100 episodes.

I figured it out.