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Posted by lmbbuchodi 9 hours ago

ChatGPT now knows what you do on other websites via ad collector(www.buchodi.com)
526 points | 298 commentspage 4
einpoklum 2 hours ago|
No it doesn't, if you:

1. Never register with OpenAI/ChatGPT, and

2. Strongly block ads, e.g. using uBlock Origin + EFF Privacy Badger. Yes, those don't work on Chrome, Edge and other Chromium-based browsers.

Also, even then - ChatGPT may be tracking your behavior indirectly through Microsoft's various services and platforms. But we should do our best to undermine mass surveillance and support individual privacy.

jfasi 6 hours ago||
I can’t believe I’m saying this, but the reflexive “ad tracking bad” that I am most savvy tech practitioners reach for might deserve some reconsideration in this case.

The thing about advertising on the web and ad tracking as a practice is that, barring the small matter of ensuring the economic survival of the publisher sites, it is almost always a negative for users. When we consider the marginal benefit of naïve, uninformed-by-surveillance advertising with the present day status quo, we find that in exchange for a complete lack of privacy, we only really receive a marginal improvement in ad quality. Of course, if you (like me) consider all advertising to be a negative on the experience of using the web, it’s an even worse deal.

The standard response given by these companies when they bother giving a response is something to the effect of “we are improving the experience for our users,” which obviously the users would disagree with. However, when it comes to OpenAI, they could build a plausible case for this sort of tracking improving the product. If your models know where your internet habits are, the responses that you get could be tuned for both your interest profile and your actual history of interactions/purchases/internet usage, etc. Imagine a world in which you can opt into this tracking, control the data you provide and how it’s used, clear it out and redact it as you please, and opt in and out of responses that are personalized against it. Reasonable people can disagree, but that might actually be useful.

My prediction, though: that’s not gonna happen. OpenAI will first build out the system to collect click and conversion tracking measurements, then they will turn around to advertisers and say “look at how good our conversion rates are,“ and then they’re going to build an explicit ad platform that enshittifies their chat products.

mitxela 4 hours ago|
Yeah Google benefits you by tracking you and delivering more relevant ads too. Doesn't make it any less creepy.
bilsbie 6 hours ago||
Is this how random sites know what I search for?
bandofthehawk 46 minutes ago|
Yes, third party cookies have been around for a long time to share info about you between sites. Make sure you turn them off in whatever browser you are using.
leo_proger 5 hours ago||
crazy dude. chatgpt can't even see the full page content when searching the web and you're saying this...
retube 7 hours ago||
The defence is simply to delete your cookies?
starkeeper 3 hours ago||
Why don't people hate this as much and riot with torches like they do against flock?
Razengan 5 hours ago||
Does blocking `bzr.openai.com` on the DNS server prevent this? (without breaking ChatGPT)
gruez 6 hours ago||
I spent 10 seconds skimming this blog post until realizing it's just AI generated (ironic) slop describing how third party cookie tracking works. https://en.wikipedia.org/wiki/Third-party_cookies#Mechanism

Everyone would be far better off if the author just posted "OpenAI uses third party cookies [wikipedia link]", except maybe the author who wouldn't as many subscriptions for his "threat intel" newsletter.

zahlman 6 hours ago||
> until realizing it's just AI generated

I didn't look at the prose closely enough to check for that, but people wrote inflated explanations of basic things like this all the time pre-LLM. The Wikipedia article doesn't know the specific cookie name, and can't show the results of an experiment verifying that it is in fact being used for ad tracking, or identify specific sites using it in collaboration with OpenAI.

gruez 5 hours ago||
>but people wrote inflated explanations of basic things like this all the time pre-LLM.

And those got a pass because at least you could defend them with some excuse about how it's some budding author trying to hone their writing skills, or trying to improve their understanding by putting pen to paper. Cases where those excuses don't work (think crappy content marketing pieces from random companies) got short shrift as well. Now for all you know, it's just some dude who prompted claude to "write a blog post about openai's ads".

buchodi 6 hours ago||
There are specific details about how the mechanism works like the cookie name (__obi) that can help defenders.
gruez 6 hours ago||
I'm not aware of any filter lists that blocks based on cookie name. It's almost always done at the URL level. Moreover it's bog standard 3rd party cookie tracking. At least for the purposes of "help defenders", there's nothing in the blog post that couldn't be found in 10s with browser devtools.
zahlman 6 hours ago||
> there's nothing in the blog post that couldn't be found in 10s with browser devtools.

The audience of people who can read and understand an explanation like this one is probably quite a bit larger than the ones who can replicate the experiment themselves.

TeMPOraL 5 hours ago|||
And larger still than the ones who would bother to replicate the experiment themselves.

Yeah, I could tell few sentences in that it's Claude-written article. The style has become that distinctive. Hell, a third of the articles I opened on the HN front page today carried that distinctive style.

Doesn't really matter if the content is worth it (and I just realized that recognizing Claude in this also makes me wary of ways this could paper over key details - at this point I start to recognize from my own experience where Claude may be papering over something it didn't actually bother to check).

gruez 5 hours ago|||
That just goes back to my original point, which is that this is AI slop and everyone would be better off if OP referenced a canonical description of what's happening, rather than wasting everyone's time by generating 1200 words of AI slop for them to wade through, all for some "threat intelligence" newsletter.
swe_dima 6 hours ago||
Was considering buying ads on ChatGPT. A damning thing is that yours audience then are users too cheap to buy a sub...
bigyabai 6 hours ago||
That's a problem with most unsolicited online advertising. Are YouTube ad-watchers any more likely to splurge on your SaaS?
darraghmckay 6 hours ago||
It's slightly different though, considering a lot of ad spend is for B2B products/services, and a lot of work pay for ChatGPT, so its only people who's work won't pay for a pro subscription.

Whereas, YouTube is for personal consumption in almost all cases, doesn't say anything about your employers willingness to invest in software/services

downrightmike 4 hours ago||
Just like mobile apps, subs will never come close to the growth expectation. Given trillions are tied up in AI, subs aren't going to do it.
sergiotapia 3 hours ago|
Highly recommend you use Brave Browser and avoid all this nastiness. If you haven't browsed the web in a browser like Chrome recently, you should try it in a VM or something. It's GRIM. The Web is a wasteland and it's gotten worse because ai chatsites are eating their lunch to the ads are even worse than 10 years ago.

https://brave.com/

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