I am a big fan of 1Password which does a killer job of managing my passwords. In addition to managing passwords, it will also generate new (very) strong passwords when it is time to register for a new site or service. Today, because of either an issue with the Digg password retrieval system or Telligent email spam tools I needed to create a new account on Digg.

The sign up process is very simple, but I was shocked when I received the follow warning (emphasis is mine):

Passwords must be at least six characters and can contain only numbers and letters

I do not see why you would ever want to limit users from using stronger passwords. Does this make sense to anyone?