Couple flaws/hardships in the scam.
Not most people are going to scam their own guildies, because they are at a high rank. And a lot of people don't know how to make websites and whatnot, seeing how there is no "Improve Your DPS" phisher lying around for download.
But if you know how to make a website, and you scam/phished an account that is at a high rank with an active guild, then this could probably work.
Original idea though.