"[O]ur age models are totally blind to this extraordinarily obvious exploit for the very abusive type we're trying to solve for"

████: "[D]id Core Dims confirm that their age models are optimized to catch age-lying minors and not age-lying adults? I thought it would be operational for both sets of age-liars." ████: "yep, definitely confirmed that their focus has been on misrepresenting minors and there has never been much focus on misrepresenting adults" ████: "i think this is largely an artifact of the history of product use cases for age models - facebook generally has gated minors out of experiences, so an adult lying about being a minor just gets gated out, no harm there. it is the integrity use case which is unique in that both kinds of misrepresentation are very important, and the lying adult may be much worse" ████: "And they are, in fact, bad at predicting age lying adults? B/c if the most relevant signal is the average age of your friend graph, age-lying adults could also be fairly predictable. Although, I know from experience that age-lying adults who do so to groom children create fake minor profiles for this explicit purpose and would usually have majority minor friends in their graph." ████ "not only are they bad at predicting them, they don't really know how bad they are because of a lack of high quality labelled data… but they know it's very bad" ████: "[O]ur age models are totally blind to this extraordinarily obvious exploit for the very abusive type we're trying to solve for" ████: "yeah, totally hear you on that b/c it's true: that fact pattern is a significant part of the highest severity harms, in addition to the IRL adult who is using messaging to abuse a minor he/she has access to or can persuade to meet up for IRL sex abuse. BUT the other part of the picture is the large numbers of adults who are quite brazen and honest about how old they are when reaching out to kids -- as demonstrated by this undercover investigation where a woman pretended to be an 11 year old and within days had 94 adult men reach out to her soliciting sexual contact" ████:"but this kind of case can and should be solved for by breaking unconnected adult<>minor contact" ████: "I think this is especially a problem on IG" ████: "it's a mitigation we have on messenger and want to get igd to parity"