Aggressively enforcing rules of various subreddits, no actual skullduggery that I've seen at least. So, while normally a subreddit might allow a repost, or a topic to be covered by more than one article, they crack down hard on that. In a sub like WorldNews they were being extremely quick and harsh with "US Internal Politics" for another example, which effectively kills the post.

In essence, it's just how police operate; if you were subjected to every reasonable measure police could bring to bear on you, all of the time, your life would be a misery; A legally sanctioned, totally acceptable misery, but the power of "discretion" keeps that from being the reality for "acceptable" groups.