[clmckinley]

Reddit appears to only show images to posts about the image, not to a website. Most of reddit content are just posts to images and the discussion about the image, so IMHO that improves reddit's usability for their target audience.

HN is more about interesting content/discussion instead of posting memes and it is much harder to scan and determine interesting content from images than it is from titles. As a note: when HN has the same target audience as reddit is when i stop using HN.