Ugh, you're correct. I glanced at the help file too quickly:
Named Levels
You can also used named levels which work the same way as a specific level but are easier to understand and read than a number.
friend:goat!khaled@mirc.com
on @friend:JOIN:#mIRC:/mode $chan +o $nick
This treats the word friend as a specific access level and matches the user with the event, and because the user is your friend, you give him ops.
And mistook @ as a named level prefix.
Sorry. Disregard my post, nomics.