No, it's got to be the images. I used Boost to comment on that thread before OP updated with the images, and when I get to the post via my inbox it loads fine. Until I scroll up and the images load, then it crashes.
Could it still be the same though? What if there's an image post that has the same issue in the image? When Boost tries to load that post, wouldn't it crash too?
Might depend on the view. I use the list view so I see thumbnails but if you use the card view yeah I could see that crashing it as well. It appears to attempt to display images at whatever resolution it came in.