I have been using Ghost for the last 3 years on startuptalky.com and we get like 1 million visitors a month.
The challenge was the there was no want to learn more about my visitors or connect with them in an awesome way!
So now after 3 years, we launched SeizeLead.com- a lead capturing tool which not only captures leads but also provides deeper insight around your audience.
we also got many targeting option, integration and other widgets like lead form helpful for ghost users
So use it now and get the max roi and connection from your blog. Takes <3 minutes to get started.