Regardnless of whether or not it teechnically abuses your little code of conduct, it's pretty clear that using admin privilege to look someone up on facebook who expressely stated that they wanted to remain anonymous is morally way out of line, especially considering that facebook reveals full name, photo, possibly school and friends details etc etc.
Claiming that I brought it upon myself is ridiculous. I never issued a "challenge" to you to search for my personal details, you just decided you would infringe upon my privacy and do so, and an incorrect interpretation of the situation on your behalf doesn't excuse the breach of trust and privacy. Coblin's rape analogy sums it up nicely.
And indeed, despite whether it's technically an infringement of the code of conduct, it's certainly likely to strike a chord with other members equally concerned about protecting their privacy, who will also take issue with the nature of your actions. I suppose it's up to them to decide whether they should place their trust in an admin with little to no professionalism, who happily steps over the line to satisfy his own curiosity.