A very thorough researched article. We used to run a Wordpress site for our blog. The other issue with Wordpress, that SquareSpace doesn’t have, is the risk of getting hacked. The more Wordpress plugins you install, the higher the risk of any vulnerabilities.
There is a third option – Medium. It’s free, easy and you can even use your own custom domain. Medium also has a migrate tool to make it easy to move your Wordpress site content over.
Below are some examples of companies using Medium: