Simple Fix: Limit his download (and more importantly *upload*) bandwidth--tell him to get a torrent client that allows it. Problem solved.

"Harry Potter fanbois should pick up some Dostoevsky -- I promise that will make their nuts drop and put hair on their chests! Why spend life daydreaming in fairyland when real life is so much more interesting?" Because being pretentious and condescending is just as bad as being a fanboi.