Yes, there are many noobs on World of Warcraft. So how easy is it to scam them? It's pretty simple.
1. Go to the Auction House.
2. Find an item that is very cheap and affordable. You can use the Auctioneer Mod to help you find a cheap item.
3. Advertise that item (Type 'WTS' then shift click the item to link it then type a price), for more than it is on the Auction House, on the Trade Channel. (Usually 5-10g more than you buy it from the Auction House)
4. Wait for a noob to whisper you.
5. If he wants to buy it, buy the item from the Auction House, and sell it to him(Again, usually 5-10g more than you buy the item rom the Auction House)
6. If he backstabs you and says 'I don't need the item anymore' then just try to sell it for the amount you bought it for from the Auction House to get your money back.
One time I bought a Necklace (I think it was a necklace, can't remember) for 32 gold and sold it for 40 gold!
Note: This guide was created from scratch by me, please don't steal it!