I think the definition is a bit murky there. I can do a _lot_ of things on a Reddit page without a refresh: add comments, delete comments, edit, sticky, report

I think the definition is a bit murky there. I can do a _lot_ of things on a Reddit page without a refresh: add comments, delete comments, edit, sticky, report as spam, save, hide the post, view the contents of the post (if it's an image), crosspost to other subs, etc. I understand that a true SPA would never require a refresh for anything, but this comes pretty close.