SlateStarCodex's recent post on a similar topic was illuminating [1]

> It’s very easy to remove spam, bots, racial slurs, low-effort trolls, and abuse. I do it single-handedly on this blog’s 2000+ weekly comments. r/slatestarcodex’s volunteer team of six moderators did it every day on the CW Thread, and you can scroll through week after week of multiple-thousand-post culture war thread and see how thorough a job they did.

> But once you remove all those things, you’re left with people honestly and civilly arguing for their opinions. And that’s the scariest thing of all.

> Some people think society should tolerate pedophilia, are obsessed with this, and can rattle off a laundry list of studies that they say justify their opinion. Some people think police officers are enforcers of oppression and this makes them valid targets for violence. Some people think immigrants are destroying the cultural cohesion necessary for a free and prosperous country. Some people think transwomen are a tool of the patriarchy trying to appropriate female spaces. Some people think Charles Murray and The Bell Curve were right about everything. Some people think Islam represents an existential threat to the West. Some people think women are biologically less likely to be good at or interested in technology. Some people think men are biologically more violent and dangerous to children. Some people just really worry a lot about the Freemasons.

...

> The thing about an online comment section is that the guy who really likes pedophilia is going to start posting on every thread about sexual minorities “I’m glad those sexual minorities have their rights! Now it’s time to start arguing for pedophile rights!” followed by a ten thousand word manifesto. This person won’t use any racial slurs, won’t be a bot, and can probably reach the same standards of politeness and reasonable-soundingness as anyone else. Any fair moderation policy won’t provide the moderator with any excuse to delete him. But it will be very embarrassing for to New York Times to have anybody who visits their website see pro-pedophilia manifestos a bunch of the time.

> Every Twitter influencer who wants to profit off of outrage culture is going to be posting 24-7 about how the New York Times endorses pedophilia. Breitbart or some other group that doesn’t like the Times for some reason will publish article after article on New York Times‘ secret pro-pedophile agenda. Allowing any aspect of your brand to come anywhere near something unpopular and taboo is like a giant Christmas present for people who hate you, people who hate everybody and will take whatever targets of opportunity present themselves, and a thousand self-appointed moral crusaders and protectors of the public virtue. It doesn’t matter if taboo material makes up 1% of your comment section; it will inevitably make up 100% of what people hear about your comment section and then of what people think is in your comment section. Finally, it will make up 100% of what people associate with you and your brand. The Chinese Robber Fallacy is a harsh master; all you need is a tiny number of cringeworthy comments, and your political enemies, power-hungry opportunists, and 4channers just in it for the lulz can convince everyone that your entire brand is about being pro-pedophile, catering to the pedophilia demographic, and providing a platform for pedophile supporters. And if you ban the pedophiles, they’ll do the same thing for the next-most-offensive opinion in your comments, and then the next-most-offensive, until you’ve censored everything except “Our benevolent leadership really is doing a great job today, aren’t they?” and the comment section becomes a mockery of its original goal.

[1] https://slatestarcodex.com/2019/02/22/rip-culture-war-thread...