EDIT: I misremembered the exact words as he actually comments on press freedom in the US. Here's the point in the interview. http://www.youtube.com/watch?feature=player_detailpage&v=f1Z...
And then he'd have another story to write.
Having one of the richest men in the world writing your checks means that the domain is very unlikely to be seized. They play those games with people who can't fight back. Pierre Omidyar can fight back.
If a tree falls in the forest...
The fact that some server, somewhere, is available to service requests doesn't do very much, if your readers don't know where that is. The DNS system is the normal way of doing so.
This isn't the first time Glenn has moved, he had his own blog for awhile, moved to salon, then to the Guardian. It doesn't seemed to have stopped people from finding him.
They managed to get to him via his Brazilian partner while he was in the UK. So what is there to lose at this point?
If the US government does want to mess with Glenn some more, he'll have the benefit of the fact that US courts do recognize some additional rights to being on US soil. And for PR purposes, being fully on US soil is also advantageous.
Not to say that he's fishing for it, but the US can screw with your Internet hosting no matter where it is, and he'll get more protection, more attention, and more sympathy if it's all located in the US.
Part of me hopes he did this on purpose, so that whe GoDaddy makes a move, it will unleash unseen amounts of Internet rage that maybe, finally, will take GoDaddy down for good.