Recently in a chatroom I know people have been discussing using HTML and CSS only without any kind of other markup / templating / build script.

I am not into it.

I do wish there were a better way to define my own mini-extensions to markdown to have the markdown be the properly Canonical form of my content; I have an oembed liquid tag and a linkpreview liquid tag and ideally that’d just be a presentation detail rather than embedded within my markup with liquid… but as it is, I’m quite happy with the flexibility Jekyll gives me given that even my weirdest stuff is easy to express as “turn some markdown into a chunk of html and put that html into a different piece of html” (yes you can see some poorly rendered markdown there, no I do not care enough to fix it)