Companies who "specialize in suppressing negative content" often spam lots of social sites with their positive pages, under the (usual) misconception that this

Companies who "specialize in suppressing negative content" often spam lots of social sites with their positive pages, under the (usual) misconception that this will improve search rankings. Things like that make it interesting to be a person who identifies and nullifies spam patterns - you see who's trying to hide something. You can't ever tell anyone, because respect for users (even spammy ones) is essential, but it's interesting.