While I agree that people need to review any and all code they get from the internet, I have to tell you that if you drop someone's version of sp_help_revlogin, then you've done a very bad thing. At least give people some warning in your write up on the script so that neophytes that may not be so careful aren't screwed by your script. A "Principal Consultant" should know these things and provide much better documentation, especially within the code itself.