[Shinoa]

And the question remains, Is this just a publicity stunt by Anonymous to (yet again) glorify their presence In the cyber world?

We'll have to wait and see what eventuates.

It probably is a publicity stunt, but there is practically no way that their "fame" will last more than a week or so. Anonymous isn't likely ever gonna recover from the terrible reputation it has.

This is the one thing I don't like about the idea of an  unverifiable anarchist collective. Anyone can release any information under the name "Anonymous", rather fortuately for them, anonymously, and nobody can reliably refute it.

For all we know, this could have been some crackpot conspiracy theorist trying to get his idea some traction online.

I wouldn't say "This is the one thing" since there are many issues with an anarchist collective in my opinion; however, I do agree.
Similar to what both you and @mothered said, any "information" coming from an unreliable source that anyone could make up, can't be taken as seriously as well established and reliable sources of information. This claim by Anonymous seems to help prove just that.