It's wrong to downvote posts just because they are new.
Stacy posted an awesome selfie on a subreddit but people are ignoring it in favor of newer posts.
Stacy wants people to see her post on the subreddit.
Stacy start linking her Reddit post outside of Reddit so more people see it.
Stacy starts downvoting newer posts so that her post is seen.
Stacy's post gets more views and Stacy feels satisfied.
Reddit suspends Stacy for vote manipulation and Stacy feels ashamed.