I'm not surprised. Years ago when Ragnarok Online was still the hot thing here in the Philippines, I've heard many stories of women offering sex in exchange for zenny (RO's currency) or certain equipment.
There was even a murder story about a master of a well-known guild in the Lydia server who killed an opposing guild member for real just for a rare monster card.
And as for cross-universe economy, buying and selling in-game currency and items for PHP (Philippine Peso) is illegal but notoriously common here.
Sorry I got off topic again. Just thought I'd share the online gaming community of my country.