Given the level of user interaction asked on Nationbuilder sites, the sensitive nature of interactions users have with Nationbuilder (political campaigns, donations), how standard SSL this has become across the web, including hosted platforms like Wordpress.com and Shopify, especially since Let’s Encrypt/Certbot, I’m quite horrified that this hasn’t been implemented already.

It would be useful to move {{ settings.site.full_url }} outside the body and into the email theme template.
That way it could point to a subpage or site (at the moment points to parent site)
It could also then be styled as a button for example.

it took me ages to work out that the comment template is in _page_stream.html
I would have guessed the file would be have comments or reactions or something like that in the name.