My apologies for being quite guarded and possibly a little bit harsh as I really thought this account might be a catfishing type. (Someone hiding behind someone else's photo). Your photo is unique in displaying a man wearing Arabic headdress I am getting at least one message a day from an account that turns out to be spam - they have created an account using 4th epic and name of someone whom I have left a comment for...

Anyway, whether Medium allows it or not, I still think it is better practice to write your own article or interview the writer whose article you want to promote, and then simply provide a link to their article on their page.