I consider myself young, but I've been around long enough to to rely on One True Service Provider for anything. And "Let's Encrypt" is not an answer to "HTTPS

I consider myself young, but I've been around long enough to to rely on One True Service Provider for anything. And "Let's Encrypt" is not an answer to "HTTPS is not free". It's not. We all are going to see our projects outlive Let's Encrypt (or their free tier). In the end, nothing is secure. A dedicated attacker will find a way, given enough resources. Any security measure is just a deterrent. My deterrent is that it's not worth MITM'ing my personal website with, like, 10 monthly visitors. (The reader might gasp that I lock my bicycle with a chain that can be snapped in a second, and that a strong enough human can probably bash my home door in). Anyway. It's almost 2020, and if you are still advocating on moving the entirety of the Web to reliance on Big Centrally Good Guys, I really don't know what else to say to you.