Ok this is an idea i had a few days ago, cant really be bothered trying it but if you do and you are successful feel free to hook me up
Basically its just a new Youtube scam but instead of GC its WotLK CD keys offering free Deathknight unlockableness for people under lvl 55
Simply make a video as you would for GC scam with all the "email this addres with following code" mumbojumbo But say things like " Struggling to get your lvl up so you can get a deathknight??? WANT ONE FOR FREE???? Then send your code to this server and in a short time you will recieve a new Key and when you activate it VIOLA your deathknight class will be available!!" Oh yeh also say that you dont need acct or pass because it is embedded in the CD key or something...... <- yeh that last bit sounds stupid but the people falling for this will be noobs anyway..
The good thing about this scam is that noobs that cant lvl would see this and be like "OMG FREE DEATHKNIGHT!!" And most of the time those noobs are really dumb .
I was thinking this wouldnt work atm coz its not out yet but you could say you found it out on beta or just wait till its released. Or put it up now so you get 20 noobs eager to send you there code on release date :P
Note: Make sure you dont ask for their Acct or Pass. Oh and you gotta mention that its gotta be an unused key and they cant use the key for x time (x meaning however long it is until you steal their CD key.