@nprofile1q... The existence of it will certainly make it easier to file a pair of class action suits though - one from web users in general who are having work generated for them, one for anybody running a server being DDoSed by them.
In that regard, Anubis generates evidence of clear harm to users and that servers are having to adopt previously-unheard-of measures to keep their web sites running - and especially that self-hosting is being slowly rendered unviable which is a massive form of harm.
And we don't have to try it just in the US, either.