She has been clustered into a group most likely to click bra ads by a data-mining algorithm that maximizes click through rate based on available data. There's no other consideration given and no deeper meaning to it. The bottom line is that you should use ad, script, and tracking blockers on every website you visit. It should be common sense by now.

Somebody made that algorithm, and ran it. They should be held accountable for what that algorithm does. We all know we can block the ads, stop using the product, etc. Now when is Instagram going to acknowledge that their product is user-hostile?

That algorithm is not a natural phenomenon, it’s made for a purpose it serves, and I’m so tired of “the algorithm did it” as an excuse. Please try again. I agree on the ad blocking, but if everyone actually did it the internet would implode for a while, and most don’t know how to use good versions anyway. No offense, but pretending that anything remotely technological is “common sense” for most of the world is either idealistic, or delusional.