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Comment by codetrotter | Hacker News Reader

> simplify the human work given that anyway it's simple to solve via NNs. We are at a point where designing very hard captchas has high probabilities to increase the human annoyance without decreasing the machine solvability

Or disallow free users to post at all, and require everyone to buy the 4chan Pass for $20 USD per year if they want to post.

https://4chan.org/pass

This is already available to not have CAPTCHA. So if CAPTCHA is totally ineffective, it follows that they should do away with CAPTCHA and free users being able to post at all and everyone should buy the 4chan Pass if they want to post.

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This kills the board. Users will go elsewhere, fuck all people pay for pass.

And the spambots will follow them. Which kills the next board. Repeat ad nauseum until the end of the internet.

Agreed, charging for accounts is the only halfway viable solution I have seen any service use that gives a sizable downtick in the sheer number of bots/spam.

Of course it's not perfect, and it will still happen, but I have yet to hear any better solutions. Please prove me wrong though!

This is known as a Sybil [1] attack and it lays the groundwork for stuff like Adam Backs hashcash [2] protocol and it’s basically why things like proof of work [3] have a monetary value today.

Very chicken and egg this entire field- defending against the spammers while simultaneously operating a “free” system. How to do it without making it prohibitively expensive to join the system…

Any free system will be abused yada yada yada

[1] https://en.wikipedia.org/wiki/Sybil_attack

[2] https://en.wikipedia.org/wiki/Hashcash

[3] https://en.wikipedia.org/wiki/Proof_of_work

At this point I have to wait 90 seconds before making every post. (maybe because I don't persist cookies). I posted very rarely, but now I just stopped - I get it when someone shows me the door.

That would work. It would also kill the site.

What? So you use 4chan? It would completely kill what makes this website special

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