One thing that I'm interested in is the politics subreddit. How is it that so many paid subscription sites hit the top of the subreddit so often? I've never see

One thing that I'm interested in is the politics subreddit. How is it that so many paid subscription sites hit the top of the subreddit so often? I've never seen the popularity of subscription sites, and the lack of objection towards a subscription site, in any other internet forum. On hackernews- there are rarely subscription sites- and when there is, the first comment is typically how to view for free. Likewise with literally every other forum I frequent. It's particularly interesting in a /r/politics subreddit that is fairly anti-capitalist