Your username,
nickname, and email
must all be unique in this system.
If someone else has already used your desired username or nickname, you
must pick something else. (It's perfectly acceptable to use your email
address as your username, if that's what you want to do.)
Your nickname is what will be displayed to other people - it's how your
name will be shown in the system. It should be an "obvious" reference to you,
and reasonably short.
(I reserve the right to assign your nickname if it's inappropriate or obscure.)
Your first name, last name,
and email address must be what you have used to register
in the BPA. It's what determines your eligibility to participate in events hosted by this site.