As of a few months ago, Reddit no longer allows linking directly linking to their hosted images. You are directed to a pseudo-page that links back to original thread it was posted in.
This sucks because it's now not possible to use the browser's built-in image viewer which has better UX.
I am expecting them to eventually put ads on the page as well.
Random example: https://i.redd.it/144knacbw3rb1.jpg