They’re actually more to dogpile things that slither over here from places like DU, and trolls who come on here to consistently post straight up leftist trash. They’re usually rude and for some reason a lot of them are illiterate. (And they probably don’t bathe regularly, but that’s just speculation on my part.)
The zot threads can be a lot of fun. It is very rare, if ever that an innocent poster is the subject.
FR is a lot nicer and more tolerant than places like Twitter who will outright nuke people for speaking against The Narrative.
It is very rare, but being one of Jim's FR FB admins, I've had 2 FR 'Zotees' plead their case to me on FB that they were mistakenly zotted (long time FReepers in good standing), I brought it to JR's attention here and they were reinstated.
So I suspect it happens 0.000000001% of the time. 😃