It's dirty but it's a scam...
Get into a large guild and get comfey.
Then say that you figured out a way to get a guild site that automatically updates rosters and is linked to the armory. You need to get email addresses to add to it so it can send the roster info to them when it updates... Be creative, it helps.
Wait a few days. Tell them that your waiting on a progress report on the site.
Using the email addresses send this letter.
Then ingame after the emails have been sent, to make the emails believable, be like, "the site i used to create the guild roster was a scam, they are attempting to steal accounts and blizz is sending notifications to everyone who was affected."
Good luck with this scam as it will take about a week or so, but you can get almost a whole guilds accounts doing this.
Enjoy