There absolutely is a need to "attack" other websites, when you see one community that was once flourishing with great degrade into every other regular old internet comment board.

HN is a fantastic place with lots of very smart people. I would hate to see this place run down with stupid nonsensical comments, memes, and image replies.

I come here for the quality discussion, that's it. If that leaves, there's no point to HN.

Have you seen Reddit "discussions"?