You seem to think that I'm rooting for Wordpress, I'm not. I just used it as everyone knows what Wordpress is. I'm currently using my own blog engine (https://github.com/pothibo/ecrire). What I wanted to say is that as soon as you need some feature for your blog, you'll end up using something that is powered by a database.
Honestly, I chose not to go with Wordpress for 2 reasons. First is that it needs a server. Using Jekyll, I am able to leverage Github pages to serve my website for free. The second reason is that Wordpress is not easy customize (from a programmer's perspective). I tried to learn Wordpress themes but stopped after sensing how much time this would take me. Jekyll's themes were self-explanatory code, allowing me to plug my website's same CSS files and HTML template into the blogging platform. For Wordpress, I had to use PHP and learn theme functions and learn how to package the theme beforehand.
I know Wordpress has wide collection of plugins, but coders like me always prefer to write their own stuff.