A great read! I got it by email from medium itself! The article can be extremely helpful for anyone who is not sure if they should join and what they can do here.
I would like to ask you if you have posted the 'friends link' It is a link on medium that provides free access to your readers on medium.
For the regular links, medium allows the view of 2 free stories a month - or the reader should become a member and pay a membership. I only just found out about it a couple of days ago - so I guess you know (but just in case :))