> "Speaking of usernames, i've run into more than one bank that requires a digit in your username. A digit. In. Your. Username."
This makes sense, as your credential set includes both username and password - enforcing increased diversity in character selection in username to include numerics increases the exponent by 10 for each character.
I do not consider a username to be a secret information. But even if it was secret, having complex username just make thing complicated. And when it is too complicated, your users tend not to use your service at all.
This makes sense, as your credential set includes both username and password - enforcing increased diversity in character selection in username to include numerics increases the exponent by 10 for each character.