Doxxing is illegal? I am against it but if it's republishing public info I don't think it can be illegal in the US unless there is an intent element.
The blog author is in Finland, so it's covered by the Article 8 right to privacy of the ECHR. The exact implementation is country dependent, I don't know how it works in Finland but in the UK we just extended the common law tort of "Breach of confidence" to it.