> This is the core of your argument, and if true, it’s unassailable. However, I don’t believe it’s true. Do you have evidence that it is? I don’t mean well-crafted arguments by respected people, but actual evidence.

> For my part, I’ve seen evidence to the contrary. Elsewhere in this thread, there’s a study that cites the positive benefits of deplatforming on Reddit.

I'm familiar with that study and I'm pretty sure they acknowledged that they only measured activity of individuals who remained on Reddit. It's really hard to definitively say what happens when groups move to private forums where you can no longer track their conversations. Also, what people say in public vs. private can be different [1] [2], and I think periods when that is true (such as right now) should be cause for consideration about whether or not censorship contributes to that. I'd argue that state or widespread cultural censorship does contribute to self-censorship by chilling conversations, and that people's views don't change when you block them from view. It's like sending someone to prison vs. rehabilitation. You might still argue that the views can't spread as easily, and I would argue against that too.

When groups are deplatformed, they find their own ways to communicate, either by joining private groups on services like Telegram or by creating their own platforms.

Then they are outside your sphere of influence and harder to reach. We are pushing them in this direction and I think we will end up regarding that as a mistake. But it's not like this is the first time that's happened.

You can join my talk next Wednesday, October 12th [3] to learn more about what I think with sources. It's the first one listed. This particular question is not the focus, but it is related. I'd also recommend listening to free speech defenders such as Ira Glasser, Nadine Strossen, Greg Lukianoff, and Jonathan Rauch, to name a few [4]. They've all spoken at length about this via many forms of media, books, podcasts, conferences, etc. Anyone interviewed on the So to Speak podcast is also great, particularly the earlier episodes where they bring in the older generations who've been defending free speech for their entire lives.

The evidence is there, but every time there is a new technology it takes time to collect. You can instead consider a principled approach based on what you know works between individuals. Jonathan Rauch makes a great case for this in his books and speaking.

> I’ve also observed that online forums invariably turn into cesspits if they aren’t moderated.

I think this is true! Yet, the more we censor, the more concentrated the echo chambers become, both the ones you agree with and the ones with whom you disagree. So IMO we must stop regarding "ugly" forums as a bad thing to be avoided. We all have difficult conversations in the real world, and I think curating the online world to look nice and pretty only provides more evidence to the idea that our current "solution" to online disagreements isn't working and appears to be infecting the real world.

> The larger the forum, the more aggressive that moderation has to be, to the point of banning and shadowbanning. HN does it.

That is evidence that it's popular, not that it is a good idea.

> (For that matter, downvoting is another form of deplatforming, in that it literally pushes other people’s opinions out of sight.)

I agree, and I think that has the unfortunate side effect of hiding some useful rebuttals, as I mentioned elsewhere in this thread [5].

> So there’s two points of evidence that make me believe that deplatforming is effective: one is academic; and one is the personal observation, that I think we’ve all shared, that moderated fora work better than unmoderated fora. What evidence do you have? Please summarize rather than just posting links.

I'd say the jury's out on how to effectively moderate fora. We're just at the start of this era and it's been quite a bumpy ride. Moderation, at the very least, should be transparent to the authors of the content, and that's not the case across all of the major platforms, including this one.

[1] https://youtu.be/-ByRjHwknbc?t=2892

[2] https://www.axios.com/2022/08/17/americans-voters-private-be...

[3] https://truthandtrustonline.com/pre-conference-workshops/

[4] https://www.reddit.com/r/reveddit/comments/wxfjvy/im_on_a_po...

[5] https://news.ycombinator.com/item?id=33055630