That may well be @StickyWickets but the rumour was out there before he 'joked' about it.
I'm listening to an interesting podcast that starts by looking at internet traffic around the Depp/Heard case. I'm only on episode four but it delves in further and looks at other cases (mainly US) and says that there are hundred of thousands of social media post's by 'bots' being deployed to unsettle and harm our democracy. Targeting government, legal decisions etc.
Without starting another conspiracy it makes sense that this could be happening - it would be a societal earthquake for the monarchy to be given its marching orders. Even greater than Brexit. Anyway, it crossed my mind that there could be a link when reading the rumours surrounding Kate.