I would also recommend Hugo as well. I just switched over to it from Jekyll and it's really quite nice. It takes a little bit to get used to the theme structure, but once you have it down, it's pretty easy to keep track of.

Disqus is also a great way to have comments on a static blog. I use Disqus and haven't really had any issues at all with it.

I found it more important to learn to write well rather than to add a comments section. Also, to have a way to get feedback before posting.