Post 3. The Disqus code has been added manually using Sandvox Pro to see if the over-sized comment box is still a problem. It is.
It also demonstrates the problem of comment boxes showing through on to the Collection's index page. As well, manually added comments don't have the Comment Count on the Collection index page without some extra work.
It's a load easier to add Disqus comments by enabling them in the Inspector.
Discussion by Disqus