In this case I believe it is warranted. I fully support OP's emotional take.
HN has been hit with lots of runoff from these reddit-dwelling mouthbreathers lately and it's turned this place into a downvote machine for any comment not towing the populist anti-intellectual party line.
Poisoning the well adjacent behavior rather than actually taking issue with anything said by the content truly illustrates how intellectual a take OP had with his "everyone's a retard and the internet sucks" take.
Would you dignify timecube with a measured response? I wouldn't - I would call it out for the drivel it is, assign it the ridicule it rightfully deserves, and move on, as I have done here.