[hutzlibu]

"I mean I could have been an undercover policeman or something..."

If the police wanted to bust people hypothetically threatening other people with violence, they just have to look on social media a bit. But as far as I know, a vague hypothetical threat like this, would probably be dismissed by a court. I rather know, that there are many people walking freely around who do make not cague, but concrete threats to concrete people and the police usually says, they cannot do anything.

[vidarh]

UK police has a multiple decades long history of infiltration of animal rights groups, though. They likely wouldn't try to act on a non-specific threat like that, because you're right it probably would get dismissed, but it's the kind of thing that certainly could trigger unwanted attention.