For those like me who had never heard of Kiwi Farms until recently, the podcast Blocked and Reported (https://www.blockedandreported.org/) has a couple recent episodes that do deep dives into the site and controversy around it.
With the only smoking gun, as far as anyone can tell (but you can't look anymore because the pressure campaign got it removed from the Internet Archive), being two posts in a thread of 50,000 posts that were made from sleeper accounts that were deleted immediately.
And only a few people cared to look into it rather than echo exactly what the pressure campaign claimed to be true.
That should be very concerning.
I definitely recommend the linked podcast. I found it surprisingly fair to the parties involved.