Take It To The Bank; LLMs Might Just Be ID Graphs That Need No IDs | AdExchanger

"Google Ads began phasing out credit and debit cards a year ago. Secondly, the one-time AppNexus DSP Xandr Invest officially shuttered over the weekend. The Microsoft product was a last bastion for advertisers to hook up a credit card and avoid monthly minimums. The Trade Desk doesn't take credit cards, either."

"Marketers, the founders of direct-to-consumer ecommerce brands and small Shopify-based businesses rather enjoyed the Meta credit card loophole. That's because they'd collect the cashback or reward points - a nice little secret ROI for those campaigns. To be fair, Meta isn't trying to kill credit card reward schemes; it's trying to curb fraud on its platform."

"LLMs identified 17% of Reddit users who discussed at least 10 different movies in r/movies and r/horror subreddits with near-perfect accuracy. According to their findings, LLMs were more efficient than traditional deanonymization methods, which match structured data sets, such as a data broker or audience ID graph."

Major advertising platforms are phasing out credit and debit card payments in favor of invoicing systems. Google Ads began this transition a year ago, and Microsoft's Xandr DSP recently shut down, eliminating one of the last platforms accepting credit cards without monthly minimums. The Trade Desk also does not accept credit cards. While marketers and small ecommerce businesses previously exploited credit card rewards as hidden ROI on campaigns, platforms like Meta are implementing these changes primarily to combat fraud rather than eliminate rewards schemes. Additionally, large language models pose significant threats to online anonymity by identifying users through text analysis of public posts with near-perfect accuracy, surpassing traditional deanonymization methods.

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