I can't fathom the purpose of this page, someone who needs to understand and follow this shouldn't be an administrator to begin with.
and some are inaccurate. Passwords based on individual dictionary words may be insecure, but if you compounded a couple of them, the password (or rather, passphrase), is more secure than the convoluted *@&*(!& that was being propagated everywhere.
Here's homework for you. Find out "Iusedadictionaryforthispassword" is more secure than the password "n0@128!^2377"