Why are there so many Russian and Nigerian Scammer's on Yahoo Personals with Fake Photos of women?

Everyone who contacts me there has a pic that doesn't match text and they always give outside email addy and within days their profile has been deleted. I have traveled in Europe and know how Eastern Europea Women look as well as the countrysidesand their profiles only say ANY up and down what they seek in a man. FAKE I get bombarded with Yahoo IM's from NigerianScammers or Russian Scammers