You are right, at the core, it is simple, but it is time consuming to me. And it falls over under load unless you have a bit of time or money to throw at it, or both.
I like the idea or working in a text editor of my liking, knowing that quote marked in code aren't auto converted to smart quotes, knowing that the raw markdown is raw, and I can move it anywhere.
I am sure you can do all this in Wordpress, I am just looking to remove all that overheard, as starting a blog again is feeling more daunting than ever given my current medical issues. If I can just get it off the ground I will be happy.
But I feel I have to do something, so I want to do something that gets me to my end goal as quick as possible, but allows things to possibly grow without me thinking about what a Varnish, CDN, Cloudfront, etc all are.