I don't know whether this is new, but it is making headlines because the new AI descriptions have been "roasting" customers and including weird with comments like:
"has flat buttocks"
"has never known anyone who has lost a leg in an accident"
"Post-economic (still hardworking)"
It isn't fully accurate. AnnoyingDroid's profile said that his house is 37,000sf (3400sm), "puts everything they own through a filter," "eats once every ten weeks," and has 400 children.
https://mashable.com/tech/amazon-about-you-profiles-how-to-find
Go to your user profile and down in the blue links (not up in the "cards") you'll find an About You link.
I skimmed mine a couple of days ago. Sadly, there were no "brutish masculinity" comments. OTOH, there were no "complete nerd" notes, either.
Most were generic, though I did see one about "prefers stainless steel for outdoor items" that was on target. So, like Gemini, I think AlexAI is worth training with my preferences. Today, after reviewing a selection of amber 3d filaments I went back and told it why I chose a particular one (prefer more transparent petg). It replied: I'll make a note of that.
Mine said I recently expanded my home gym, which was true and pretty easy to guess since one of the items I bought was on Amazon and I did a lot of shopping there.
OTOH, it also said I am really into Fuli Japanese sheets. I don't even know what those are.