Sorry but too many challenges for me....prefer Disqus model for many reasons. Problems, frustrations with this model include...,
Having go log in each time...support team not yet able to solve.
Limited characters. Sometimes a "full throated" text requires more "space".
Cannot figure out how to edit - edit option seems not to exist.
Questions and ratings after submission - frustrating, silly.
Rating as re: civil opens door to what exactly is civil...reminds me of the oft
    noted quote..."depends on what is, is".  Imagine assertive comments will be
    interpreted as aggressive or not "civil" enough.
Disqus system much easier and straight forward for editing, up voting, down voting, seeing history of comments, logging in and staying "in". I could list more problems with this system but must stop as I used up my allowed characters, so must stop here.
Will end with Good Bye and hope that maybe Disqus will return.