I have a public Facebook profile. These past few weeks I've been using it to post my thoughts about the EU and why I think Brexit is a mistake.
Over the weekend, comments started flooding in from people who'd voted Leave disagreeing with me. Not just a few. Tens of thousands. Almost all of them angry and abusive.
The trash talk I could handle. I mean, "cockwomble" is quite a good insult, to be fair.
More troubling was the breathtaking Islamophobia that erupted when I posted a photo of London mayor Sadiq Khan addressing crowds at Pride.
The post that aroused the most anger was this one, posted the morning of the result, in which I said the Brexit vote made me feel ashamed to be British.
It had 44,000 comments. I'd gone viral among right-wing English nationalists.
The onslaught of abuse tipped over into being genuinely frightening when people started posting comments on a photo of my daughter.
A large number of the comments said the same thing: I was a "traitor" who should leave Britain.
I was variously told to fuck off to Saudi Arabia, Syria, Iraq, Germany, North Korea, and Outer Mongolia. And to "join ISIS".
There was also a class element. I was accused of being a "silver spoon cunt" who'd led a privileged life.
The most common theme, however, was the notion that, in supporting Remain, I was betraying those who had fought in wars to defend Britain.
To be clear, I don't believe the angry comments I'm receiving are in any way equivalent to the real-life abuse being reported by minorities across Britain, post-referendum.
I can block trolls and delete their comments if they go too far (Facebook's community guidelines are clear on the subject of hate speech). People facing racist abuse in the street don't have that privilege.
But it all contributes to a growing sense that the referendum debate has poisoned public life. Hate crime is demonstrably on the rise.
To be sure, aggressive English nationalism is nothing new.
What has changed is the context for such views.
Now, following the Leave victory, racists appear to believe they represent the majority. They are leaving hate-filled comments on social media confidently expecting likes, shares, and agreement.
So far, I've only deleted the comments that were left on my family photos. I'm leaving the rest up, because I want people to see just how confrontational the national conversation has become.
I also think there's a positive takeaway here. For me, this has been a valuable lesson in what happens when the social media filter bubble bursts and you are forced to confront the views of people with whom you disagree. It's bracing, and scary – but if we are to stand any hope of fixing the deep divisions in society exposed by the referendum, we can't delude ourselves over what people in this country are saying and thinking. We need to confront reality and deal with it.