As I understand, the reason eBay real estate auctions are not binding isn't because of Statute of Frauds; it's because by taking a commission on a transaction between buyer and seller eBay legally would become a real estate broker, requiring that they become licensed as brokers in all 50 states and carry all of the duties in the transaction of a real estate broker. Then there are all of the other issues that might attend to being involved with real estate transactions on an international basis.