This is what Facebook generates:
For the Global Javascript:
<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {return;}
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
For each page:
<div class="fb-comments" data-href="http://www.thenameofmywebsite.com/" data-num-posts="10" data-width="500"></div>
It seems to use thenameofmywebsite.com as an alternative to an App ID. However when I paste the code for each page onto a page and save it, WA strips it to:
<div class="fb-comments" data-href="http://community.wildapricot.com/" data-num-posts="10" data-width="500"></div>
which seems to show a generic comments page that 975 people have commented on (mostly with spam) rather than generating a comments page for my website.