Politics link was at the top straight away, I wonder how much it filters out certain subs.
How are posts eligible to show up “popular”?
First, a post must have enough votes to show up on the front page in the first place. Post from the following types of communities will not show up on “popular”:
NSFW and 18+ communities
Communities that have opted out of r/all
A handful of subreddits that users consistently filter out of their r/all page
Hmm and handful of subs. How interesting.
/u/simbawulf says they are
For example, subreddits that are large and dedicated to specific games are heavily filtered, as well as specific sports, and narrowly focused politically related subreddits, etc.