Hello! I have two issues:
When I want to check "HOT" posts, I can't scroll from one post to next. There are no arrows that let me do that, nor will the keyboard short cuts let me do that.

When I click "Popular" on any given day, and try to scroll through the popular posts on the given day, the next arrow moves me to next post by post id, not next post popular in that day.

The first issue could just be due simply being a pain in the buttocks to make work, but I would love to be able to scroll through the daily populars easily.

Cheers!

Both of those are due to how the site works and can't really be fixed

Hot uses an order: metatag, which disables sequential navigation on posts. Any order metatag will do that, such as order:score
Popular orders all on its own outside of posts, so the post has no idea what "should" be next, it's just doing the default sequential ordering