> the “the user is none the wiser” part here is misleading,
Haha, true. That was way way over of a statement. ^_^ Apologies.
> deliberately ignore an invalid TLS
Which is most non-techie user. They just click without reading… (and annoying when they ask you about something).
> that's when your ISP was able to decrypt your traffic
Which is the point, it is possible and they can and will. It's why a VPN is important, it's the only solution that can stop them. ^_^