Updated Blogger Template, Again
Just changed to a new Blogger template, yet again. I realized commenting wasn't working in the old template (the embedded comment form would not get displayed on post pages even through all the commenting settings were enabled and the archive Enable Post Pages setting was on as well).
Turns out this is a common bug of sorts with many templates, including some of the dull standard templates available by default. The easiest fix for this is to edit your template HTML code and search for this line:
Immediately below this, insert the following line to enable the embedded comment form:
<b:include data='post' name='comments'/>
The template I'm using at the time of this writing is based on ITAdvance with a few small modifications (namely around the date header and the search box). You can download the exact template I'm using from here (remember to edit the search action URL and the Admin URL to reflect your blog).
<b:include data='post' name='comment-form'/>