Finally, You Can Report iMessage Spam!
You may still have to wait till iOS 7 to block users rather than specific messages, but you can now block and report spam on iMessage. It’s a little baffling that it’s taken this long, as the other major IM providers have provided this capability for years. It isn’t that there’s no spam on iMessage, [...]
http://www.intego.com/mac-security-blog/finally-you-can-report-imessage-spam/
