...see the option of "tree" or "flat". Clck on "flat". You will be able to scrool down seeing all posts, replies, etc.

While I like flat mode it doesn't work very well here because a reply to a reply shows up at the bottom instead of under the reply it is connected to. Additionally if you want to reply the quote is the only way you can. There is no "reply" button. Flat does work well for scrolling through the photo threads though since I don't look at the comments under the photos much.