in the discussion list view, all titles have a "h2" tag, in the single discussion view the title also have a "h2" tag.
my suggestion is, in the single view the title should have a "h1" tag instead the "h2" ... much better seo.

you have done this in EB, the titles in the listview are all with "h2" tag and the single blog view have a "h1" tag
exactly the same should be in ED too