Important to understand that “Repair Disk” and “Repair Disk Permissions” are entirely different procedures. The former is about file corruption, which can ultimately put your data at risk, the latter about what processes & users have access to a file or folder, a problem with which might affect the performance or functionality of an app or the OS.
Posted via email from j2mac’s posterous
jjmarcus tech solutions 
So are you warning us from using “Repair Disk?”
Not a warning, so much as to say that it’s only necessary when you actually have disk directory issues. I’m writing a longer post now.