www.IGE.com have scammers surfing this site looking for people willing to sell them gold, they will add you on skype and pay with scammed paypals and charge back the money.
To avoid is you can use this website Skype Resolver - Free Skype Beta Resolver check their IP and if is from China you'll know that it's better if you don't sell them anything. Big chinese companies will not add you first, they will let you add them, is someone with a chinese IP, adds you and pretend to be a player looking for gold, it's prolly a scammer.