The Optimization Index simply tells how fragmented the directory is. It does not address directory corruption. Fortunately, DW was able to repair it.
As I understand it, directory fragmentation is not nearly as important as corruption so don't assume that a score of 10 means that you don't have a problem.
Gads, more I did not know. Can there be other things in life that have eluded me? Nah...
Truly, that is good info, Jon. Indeed, I will keep it in mind!