Not exactly. It would be more like if r/trees made a post linking to another post they didn't like in another subreddit in a coordinated effort to get it downvoted off the front page and troll people participating in the thread.
Linking directly to an article on another website isn't quite the same unless the members register en mass to downvote and/or troll in the comments.
Not a damn thing wrong with riding a bike, just saying.