this post was submitted on 16 Sep 2026
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Explain Like I'm Five

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Simplifying Complexity, One Answer at a Time!

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I'd link to some blog posts about this an example, but the site they're from went down a while ago.

At risk of giving anyone ideas, why do LLM training scrapers request pages from sites millions of times per day instead of just doing the equivalent of wget -r https://example.com/ ? If the point is just stealing things people have written, what do they accomplish by wasting a web host's resources beyond being an ⊛ to webmasters?

Edit: Let me elaborate. A lot of the answers i'm seeing are just restating the problem without explaining why LLM scrapers are apparently all either coded by idiots or assholes. I know that they're hitting sites with unreasonable numbers of requests, wasting bandwidth, and making tools like Anubis too important. I know that's what's happening. I'm asking why. What they gain from not being even a little intelligent about this.

With all the money and effort (and maybe even brainpower) going into this, surely there's some explanation beyond incompetence.

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[–] grue@lemmy.world 9 points 4 days ago* (last edited 4 days ago) (5 children)

Everybody in this thread is talking about what they're doing, but not a single reply has been able to explain why the bad behavior somehow benefits the companies doing it.

I don't believe the only reason is incompetence; there's got to be somehing else to it.

[–] leds@feddit.dk 6 points 4 days ago (1 children)

To lock all knowledge in their models as the onky source, destroy independent websites , destroy physical books after scanning , destroy peoples brains

[–] grue@lemmy.world 4 points 4 days ago (1 children)

They're not destroying the books "after" scanning 'for the evulz' to deprive the world of them. They're destroying them before scanning because cutting the spines off with a bandsaw lets them drop the stack of pages in a sheet-feed scanner and get the job done a lot faster than using a book scanner.

Similarly, I'm sure they've got some actual rationale for their crawler behavior that makes sense (at least to them) and isn't a conspiracy theory.

Nobody is a mustache-twirling villain in their own mind, even if they turn out to be so from everybody else's perspective.

[–] Natanael@infosec.pub 2 points 4 days ago

No they're just stupid when it comes to the crawlers. They have VC money and no expectations to behave well. They want to capture everything they can as fast as possible because the race to build up datasets yup use in training is the only real target they have

[–] Dran_Arcana@lemmy.world 4 points 4 days ago* (last edited 4 days ago)

The unfortunate answer is because it's cheaper to not give a shit. Sending a request and waiting for a timeout costs next to nothing, and scales linearly in terms of compute cost. The overwhelmed server on the other end slows exponentially with each concurrent request. The crawlers are set to maximize the efficiency of local resources, which include both wall-clock time and developer time. Why send one request at a time when your server can handle tens of thousands?

Try x; wait 60 seconds, if fail: put on a list to try again later.

Costs nothing to write and nothing to run. And if you own the hardware, and are paying for power already, may as well extract maximum dollar per watt.

[–] treadful@lemmy.zip 3 points 4 days ago (1 children)

I don't know, man. Almost everything in the last 10 years can be explained simply by incompetence.

[–] grue@lemmy.world 2 points 4 days ago* (last edited 4 days ago)

No, quite a lot in the last 10 years has very much been caused by hate, malice, and greed.

[–] drmoose@lemmy.world 1 points 4 days ago* (last edited 4 days ago)

It's 100% a mix of various incompetences. I develop anti fraud systems and deal with cralwers all the time. The web is actually really complex, probably the most complex technology in history of human kind and I'm not even kidding.

[–] one_old_coder@piefed.social 1 points 4 days ago

It's not incompetence. They just don't care, the same way they stole all the books from the internet.