Both, imho. Our design is based around giving tools for our users to create with (subreddits, self posts, commenting system etc) and letting them work their magic.
edit: unfortunately, we haven't got the benefit of a visible community on hipmunk - but that's a challenge for me to overcome as I try and build the same kind of fervent community on a site where no one can start a pun thread.
edit: unfortunately, we haven't got the benefit of a visible community on hipmunk - but that's a challenge for me to overcome as I try and build the same kind of fervent community on a site where no one can start a pun thread.