Smaller subreddits are a great counterexample as well. Many are teeming with user creations, be it art, short stories, personal projects, etc. Just about anything and everything can be found there, and much of it is people just doing their thing for no profit besides an integer counter on their post.
Here are a couple of user created content subreddits I like. They fall into the general overlapping categories of making and fixing things, and taking cool pictures of clouds, plants, and *nix desktops. :)
If you prefer the new layout you can "s/old/www/g".