I don't think it's petty at all to link to publicly available information, when others have requested that information. Google-fu differs between individuals.
I do find it particularly petty that someone would go to great lengths to expose the private details of the life of a man who just wants to be left in peace.
I, for one, am quite interested to know more about Satoshi Nakamoto and this article is responsive to my curiosity about him. As someone else has pointed out, a great deal of information is public anyway in the form of property tax records and what not. If this were not the case I would get much less direct mail.
All I have done is link to some items that she released into the public domain on a previous occasion.
Sharing the stupidity of others is a long-lived internet tradition. It's almost adage status; be careful what you post, it may come back to haunt you later. The same is true of this, I suppose.