Or "why aren't you just saying what this is?". We had CDNs for ages. They are fine for static content. But no, you should not proxy any confidential or persona

Or "why aren't you just saying what this is?". We had CDNs for ages. They are fine for static content. But no, you should not proxy any confidential or personal data unencrypted through a third party, that is crazy. That stuff must be end-to-end encrypted between you and your peer. I think the marketing terms here are blurring the vision of developers. You need to understand what you are doing. "Can this data be handed over to a man in the middle?" must be something you actively think about, then making a decision.