Neo-Nazi Online Identity Theft
The identity theft in this case consists of a series of forged posts, either seeming to originate with "Paul Kneisel" or signed "Paul Kneisel."
Laws concerning online identity theft focus on the commercial aspects of the crime; they have not caught up to the political forms.
In the commercial form, somebody will steal your credit card number, pretend to be you, and then order a computer for themselves.
The political form, e.g., has them steal the credit card number, pretend to be you, and then call the credit card company and report that you improperly ordered your computer on their credit card.
More concretely, the fascists will forge some post under the name of an opponent. Then they will attack the victim of the forgery, claiming the post is real and the victim must be condemned for the content. Then they protest to the victim's ISP that the victim is engaging in improper behavior, using the forged post as "proof."
But, like with misappropriation of a name, the neo-Nazis seek to both bully their opponents into silence; create maximum confusion about political views, and illegally deny their opponents the means to fight fascism.
There may be no physical violence in cyberspace. Thus the fascists must seek other methods to replace the traditional lead pipe to the back of the head. Identity theft is one of them.