Earlier quoted context omitted.
While I agree it seems absurd, this is how the UK's unwritten constitution works - the UK Parliament is not restricted to legislating just for the territory of the UK. Of course it can only realistically enforce within UK borders, but it can pass whatever legislation it wishes. There is a famous quote regarding this nature of British parliamentary sovereignty that is taught to every law student in the UK: "If Parliam…
Doesn't it ridicule its own agencies to allow them to go after entities that they have no hope of policing? It's such an impotent gesture to do this.
Next steps would be blocking the site uk wide.
We will likely see a future where uk puts out interpol notices on the individuals involved.
If they enter a country with extradition agreements they will get extradited.