Are you literally not looking around at all these days? Your filter bubble must be very, very small and selective indeed to somehow have missed Cancel Culture.
Generally I've seen people reach for "cancel culture" when:
1. Fear-mongering the left over perceived injustice.
2. Defending bad takes by tone-policing any disagreement.
Can you point to a comment by john_moscow where they've been 'cancelled'? Or maybe a comment by you?