Unrelated, but it reminds me of 20+ years ago, I ended up with two Amazon accounts with the same email and two different passwords. The order histories were dif

Unrelated, but it reminds me of 20+ years ago, I ended up with two Amazon accounts with the same email and two different passwords. The order histories were different. I emailed them, and they merged the smaller history into the bigger history. I have always wondered what kind of lousy schema allowed that to happen.