That's right, someone tried to bring it down very quickly and it would be great if there was such a quick reaction in every scam that spreads via e-mail or social networks.
I've done a little research on whether scammers have been successful in previous scam attempts using Saylor and his company, and reportedly someone sent as many as 3 BTC to one such address - though we should keep in mind that scammers sometimes do it themselves to convince others that it's legitimate.