The number of actual prosecutions or even visits from the police is tiny, and when you look at the actual cases they tend to be racist death or rape threats.
"Arrests for offensive Facebook and Twitter posts soar in London" [1]
"Arrests for 'offensive' Twitter and Facebook messages up by a third" [2]
"British Police Arrest At Least 3,395 People for ‘Offensive’ Online Comments in One Year" [3]
"Police arresting nine people a day in fight against web trolls" [4]
"More than 3,300 people were detained and questioned last year over so-called trolling on social media and other online forums, a rise of nearly 50 per cent in two years, according to figures obtained by The Times.
About half of the investigations were dropped before prosecutions were brought, however, leading to criticism from civil liberties campaigners that the authorities are over-policing the internet and threatening free speech...."
There are a few examples in there. Here’s a few more [1]. Mostly it’s ill advised mouthing off, or blowing off steam as was the case of the guy delayed hours at an airport. These are not “true threats” or incitement, which are charged differently.
