"it was easy to divide a line between "stuff that was crap" and "stuff that we don't know about yet but might be crap or might be great stuff" by whether it used Option Declare."
"Implicit variable declaration can make writing scripts faster and easier; at the same time, however, it can lead to subtle errors that are difficult to diagnose and fix." Does this definition contradict your statement? (Surprising since it is on M$ TechNet).