That's a great list! I've come across many of those, but not all of them (luckily). The problem with this form in particular was that I got my password manager

That's a great list! I've come across many of those, but not all of them (luckily). The problem with this form in particular was that I got my password manager to type the password for me. So it wasn't immediately obvious where the error was. If you actually typed the password you would see it go red at some point, but for me it just turned red with a seemingly okay password.