But that makes them useless for what they are, especially the shipping ones: "You made three orders recently, one shipped. If you actually want to know which one (and you haven't memorized your order IDs) click here!"
This is actually a pretty annoying regression for me, because I buy things from many sites and have no way to search my overall order history anymore.
> Email is an insecure and non-private medium, but we often use it for items that require some level of security or privacy. I'd prefer if more companies held that information closely.
It is, but there's no better system and ruining email doesn't solve that privacy problem (e.g. Amazon may sell this information). At a minimum, it should be a setting so people can opt to get useful emails if they want to make that tradeoff.