But meanwhile this week is a good chance to check for USA situation sets things up for UK. We have some discussions on Brexit and a visit from Trump. Opinions vary on whether a lack of civility is a natural consequence of the web or whether Trump / Brexit introduced a new approach. Emily Bell seems to start with the authorities / Republican Party as compared with the liberals in the public who may make a large share of the posts. My guess is that in UK the journalists mostly report the Westminster situation, discussion inside the Conservative Party. Not so much reporting on Corbyn and supporters in social media. I still read the print Guardian most days so may have this wrong, maybe you find something else somewhere.
So some of the words / terms
toxic discourse (for instance at Twitter)
platform enabling a far right presidency to consistently attack established democratic principles such as those of a free press
human curators suppressed ratings for far-right news sources
furore in the right-adjacent ranks
violate hate-speech standards. It should be classified as fake news
Bell reports on some meetings that people from tech companies have had. Probability is that UK policy will follow.
On Dateline London this Saturday David Aaronovitch suggested that the UK right had normalised much new in recent years. This came up in conversation with Alex Deane and followed discussion about Brexit. I notice that UK tweets are often picking up on themes from the USA, not just retweets. Since the newspaper loss of influence became more obvious with the 2017 election there has been more activity with accounts such as Breitbart London, Westmonster and Leave.EU . Possibly moreso this week.