Whose gonna call the cops on the cops?

That, in my opinion, is the question of the era for the USA. We were taught that the rule of law prevailed and there are "checks and balances" but it seems like there is no prescibed way to enforce the rules inside the system.

These days, I would guess a "tsk-tsk" is said to them.

The States need to grow a pair and start arresting these agents who break the law.

Ah yes illegal according to those laws handed down by the king.

But she didn't dox him - per the quote above, the Minnesota Star released his name. She simply restated what was reported.

And that's before we consider the absurdity of making the names of federally-sanctioned killers private. They should all be wearing name tags and ID numbers.

And she didn't actually do what the agents claimed in their letter to her:

“This notice officially informs you that it is unlawful to threaten to assault, kidnap, and/or murder a federal official or that federal official’s immediate family member with the intent to impede, intimidate, and/or interfere with the federal official’s duties or retaliate against a federal official due to the performance of their duties."

She did none of the above. She only said "This is his name. Would be nice if he was indicted." That's not a threat - she's not in a position to indict him or sway a DA towards indictment. His family wasn't mentioned. There was no impeding of his work,

The UK case involved him being "lead away" by police and "detained" when he returned and spoke so not really an arrest for holding up a blank piece of paper. Not good by any means, but not quite "for holding up a blank piece of paper". The other UK case was about a threat of arrest if he wrote on the paper - that is under the law that bans protests in Parliament Square. Again, not good, but not for holding up a blank piece of paper.

>Or are you saying people should be free to write whatever they want on social media with no repercussions?

no repercussions from the government, yes, people should be free to write whatever they want

Most countries in the West have higher threshold to arrest someone over social media posts. Some actually much, much higher.

12K is just a ridiculous number and indicates that the UK indeed has a free speech problem. I don't think that in my country there were more like ~ 20 actual arrests over the same problem during the same period.

Even if you agree with prosecuting people for speech, why exactly would you arrest them and drag them to prison/jail? Even here in Europe, this is a sort of offense that usually results in a suspended sentence or a fine, and a physical arrest is absolutely unnecessary, unless there is a good suspicion that that person is going to harm some concrete people at a concrete time.

In a more liberal country, even if prosecution over an utterance takes place, it usually happens without arrests, simply by asking the culprit to come to a police station and explain themselves, later the same in front of a court. There just isn't any need for physical restraining of that person, it is just intimidation.