It's extra confusing since if I click on the plus in top right, I get all of these as options. Wouldn't that mean that all of these are just types of threads, as in article is a text post/thread, photo is an image thread, etc?
Basically, thread = submission in reddit terms?
And it's just a comment, it's never called a post in this context, at least based on the button that I'm about to click to send this? Top level comment doesn't start a thread, right now it says that the thread owner is "VerifiablyMrWonka" whos the author of the whole thread, not the commenter.