I work for another retail where we discussed this same topic, and during that discussion I talked to some of my friends at Amazon and I would bet a lot of money that your guarantee is wrong. From what they told me, the decision to remove info from the emails was a company-wide campaign that was specifically created as a result of this [0] NYTimes article, which specifically calls out Google snooping on Amazon shopper data.

I'm sure the advertising PMs were happy to support this decision because it got them more page clicks, but my understanding is that the underlying motive was privacy.

0: https://www.nytimes.com/2019/06/04/opinion/google-purchases....

I would think that too, if there were any ads on the order detail page. Since there aren't (above the fold anyway), wouldn't that just drive up bandwidth costs with no real benefit to Amazon?

yea i like this take better. facebook used to include message or comment content in notification emails. it was nice to get updates without having to log on to their horrible GUI. but of course they cant make ad impressions if i never log on… their emails no longer contain content of comments.