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Lol no iirc Jumpman posted before it had something to do with a player he fought who kept saying boah when something unexpected happens. Not too sure though so don't quote me on this.
Usually 20 is a good level to get the basic idea of your ivs. That's what I do when I breed on Emerald. On obtaining Jirachi you'll either have to get it from an event or from the colosseum bonus disk in America. Celebi is the pokemon in the bonus disc if you got the jap version.
I am similar to Bran minus the lack of common sense cause I usually get through the day with my common sense so yeah I don't think I am horrible on that field. I am however hopeless when it comes to asking people out, and other social things.
Provided you caught it legitly then I believe it will pass hack detection a cherish ball however is not possible to obtain in-game so it will fail in the looks department.