You brought that totally out of context. Triple digit repeat numbers are renowned in the occult/mystery schools. You assumed that said individual actually had a superstition over these numbers. All they noted was a possible spiritual connection. And they were not incorrect in doing so. The definition you provided, can't be proven based on this person's statement alone. Now if they said something like, "I would never run six six six on a frequency machine, devils would get into me!" Then your reply would have been warranted.