> What I can't find anywhere is any substantial information around what they're being 'warned' against.
Using the UK's libel/slander laws to sue/intimidate journalists and investigators into silence, IIUC.
Moneyland[1] had a few examples of this being done. Oligarchs or super-rich owning a piece of property in the UK in some form or fashion, allowing them to use the UK's legal system to help bury stories, investigations and documentaries into corruption or money laundering.
Using the UK's libel/slander laws to sue/intimidate journalists and investigators into silence, IIUC.
Moneyland[1] had a few examples of this being done. Oligarchs or super-rich owning a piece of property in the UK in some form or fashion, allowing them to use the UK's legal system to help bury stories, investigations and documentaries into corruption or money laundering.
[1]https://www.amazon.com/Moneyland-Inside-Story-Crooks-Kleptoc...