While I'm a big fan of static site generators the reason for me not to use one for blogging is the trouble when you want to have comments without an additional third party service.
(PS: I'm creating pragma.build, a web publishing platform with static page generation)
I have been running Ghost for free on OpenShift but haven't set up comments. I would recommend it but I don't think OpenShift are taking on new accounts for the v2 platform where Ghost is available -- they are transitioning to "next gen" and I haven't checked if they have Ghost on that.
Thanks for recommending OpenShift. I'll be getting my first paycheck in July and will move to a hosting provider that provides best value.
I was mainly recommending OpenShift because it's free but I don't know if the setup I have now is still available.
-takes out tongue from cheek ;)