US-Indian Spacecraft Captures Mexico City Subsidencescience.nasa.gov6 points·by hsuresh·hace 3 meses·0 comments
Scientists Have Identified Where Gluten Intolerance Beginssciencealert.com4 points·by hsuresh·hace 2 años·0 comments
hsuresh·hace 16 años·discussI agree with you. The only times i have wanted to downvote was to mark some comment as spam and/or troll. Given that we have a 'flag' link on comments, i don't see a need for downvote, except to undo a upvote.