Like, I remember as recently as 2016, that term was just used as a mocking term for weird larpers. Now, it's used as a term for people they want to purge from the left (yes, I'm using those words. How they're acting is literally the definition of purging, it doesn't have to include violence).
Yeah marxists like pol pot who was funded by the US government and took the non communist country of Vietnam invading to remove them from power.