Seems like a dangerous hacker is on the prowl. Some SEO blogs have been hacked including Graywolf's SEO Blog and Stuntdubl. The hacker has an account at WordPress which has been closed now.
The hacker also writes
My name is XXX. I am XXX years old, I live in XXX and I’m what some people might call a “computer geek”.
In-real-life I study and own a web development studio. Online I’m a well known white hat SEO. You can find me at v7n, threadwatch, webmasterworld, digitalpoint and reading stuff from blogs like personified, copyblogger & seomoz (In fact I’m a moderator at one or two of those forums!) I love to help newbie’s on forums, movies and long walks on the beach… I have an “evil” alter ego called F—ingPirate.
F—ingPirate loves racking, warez, black hat stuff and general mayhem F—kingPirate hangs out at IRC and spends all his bandwidth downloading torrents and yet-another asian porn video. As you might noticed, this site to my dark side…
What I’m going to do?
I’m going to crack all the SEO related sites/blogs/forums that I can… Maybe once in a while a non-SEO site will slip into the list but what the hell! Who cares anyways?