I feel like we are talking at cross purposes here and this all feels very broad, so I’m still not entirely sure what you are driving at other than “in the UK people are being silenced and arrested for what I consider to be acceptable speech” in some general sense. I don’t know what the line is, I don’t know what the numbers are, I really don’t have any sense of the scale or specifics of your claim.

I was responding to the initial comment at first: that upwards of 10,000 people are being arrested annually now in the UK for irreverent posts online and the like. The sources that were shared do not show that. Now you’re saying it’s really about any single incident being unacceptable and how an American can’t fathom it.

Do you see why I’m having trouble following this conversation?

Yes, I think we'll have continued difficulty reconciling this understanding.

It's almost impossible to get arrested for posting something that isn't CSAM or literal state secrets on Twitter in the US. Even so-called "hate speech" is broadly protected in the US by the First Amendment. In fact the American Civil Liberties Union (which is loathed by the American right) has gone to bat and litigated on behalf of the KKK of all organizations, for example, to protect those rights.

If you send "menacing" notes to someone, that can be a part of a larger crime like harassment, assault or stalking, but as noted in the chain, that's not what's being measured here.

So the fact that people are being arrested at all for tweets is not "what I consider to be acceptable speech" but in fact what the US generally considers to be protected speech. Any number above 0 that doesn't reference child porn is infinitely more than you'd expect to see in the US. That's the difficulty we're having.

[Edit: I understand US != UK. The American flag only flies in the embassy here. I just wanted to provide the context of those arrests and these numbers to US readers who will find them surprising.]